Late Presentment Rules: Mastercard. As such, it is limited to merchants in the following merchant category codes (MCCs): MCC 5735 — Record Stores. 4849: Questionable Merchant Activity. 10/21/14 Updated Chargeback Time Frames: Added Reason Code 05; Addendum Reason Code PM; Changed TF time frame from 120 days to 540 days. For each reason code, a definition is provided along with the merchant’s actions—or failure to act—that may have caused the chargeback,The Electronic Fund Transfer Act is a piece of US legislation that requires banks to provide certain information to customers regarding electronic fund transfers (EFTs). Protected Chargeback Reason Codes: Visa USA: Credit & Debit Cards – Authentication & Attempts. Mastercard Visa Transaction modifiers Support and contact information 02 03 04 32 46 58 71 86 Contents. Technical. 4841 Canceled Recurring or Digital Goods Transactions. . F01. 51% + 10¢ Visa Rewards Traditional: 1. The fact is, that this type of reason code is typically harder to fight than other types of chargebacks. Description: Reason code for applying handling fee. 3: Not as described or defective merchandise: VCR Dispute Reason Code 13. The program focuses on small ticket and digital goods merchant fraud transactions. • For Visa Allocation reason codes (RC 10. Information included in these reports can include: Merchant information, including name, location, MCC. 4849 – Questionable Merchant Activity – Mastercard Rule 3. Day 90 – 120 Cardholder can dispute transaction up until Day 90 for reason code 4808 on MasterCard (see Appendix for details), Day 60 for reason codes 4801 and 4802 (see Appendix for details). Documentation must be a direct result of cardholder communication. 10. ”. American Express will give you separate numbers for each merchant you intend to patronize, while Capital One and Citibank will provide you with a new number per request, even for the same merchant. 2, which specifically deals with transactions billed by other means. . It indicates that the merchant has not properly deposited the transaction amount within the card network’s acceptable time frame and a chargeback will be issued as a result. Expedited Dispute Resolution forms will not be allowed. Visa Chargeback Life Cycle. Description. When you receive information from your bank about a chargeback, it will include a reason code. ”. Fraudulent activity: Fraudulent processing of transactions includes chargebacks that occur when the cardholder didn’t make the purchase. . The financial impact of fraud and chargebacks becomes greater during a recession. 37: Filing notes: Type: Varchar; Unique: No; Blanks: Yes; Max length: 4000 characters; This is free form text about the Filing Reasons. The new reason codes follow a format of two digits, a period, then a third digit. Defending Chargebacks 20 10. The most relevant Mastercard chargeback codes for the majority of merchants can be broken down into four main categories—authorization, cardholder dispute, fraud, and point of interaction. The chargeback filing period for cardholders is usually 120 days. 5 (1050). for chargeback reason code 4863 (Cardholder Does Not Recognize. You can learn more about each one by visiting the Mastercard Chargeback Guide. This chargeback reason code means that the cardholder was not able to recognize the charge on their bank statement and believes that the transaction was fraudulent. In all regions except for France Domestic, this. . Rather than request a refund from the merchant who facilitated the purchase, cardholders can dispute a particular transaction by contacting their bank and requesting a chargeback. Find out what your chargebacks mean. In some cases, the agency will have no recourse for disputing a chargeback initiated by MasterCard or Visa. All received credit card disputes include a reason code. R21 Late Chargeback Response R22. Added the following fields - Store ID, Credit Card Chargeback Reason Code. Reason Code Reason Description; 4752: Does not Recognize: The cardholder claims that they do not recognize the transaction and states that they did not authorise the charge to their credit card. Survey data from the 2019 Chargeback Field Report found that 82% of merchants surveyed believed that the Visa Claims Resolution process had “little to no impact on chargeback management. 11. In some cases it can be upwards of 540 days, though,. Chargebacks can take up to 72 hours to reflect as processed by Mastercard. This code is used when a cardholder claims that a fraudulent transaction occurred in a face-to-face environment, such as a retail store. 7 Violation for Coercion Claim. A08 Authorization Approval Expired. Chargeback Reason Codes Retrieval Reason Codes 78 Int'l only Service Violation Code Discover 4541 AP 4586 AW 4755 RG 4553 RM 8002 RN2 Altered Amount Non-Receipt of Goods or Services0Cardholder Disputes Quality of Goods or Services MasterCard;45 Days from the central processing date of the transaction120 Days from the central processing. ONE reason code is an alphanumeric code selected from a fixed list by the issuing bank to indicate the reason of cardholder gave for requesting a chargeback. 2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. A reason code or a chargeback reason code is a string of symbols (numbers and letters). There are lower margins per card. 4853 – Cardholder Dispute – Credit Posted as a Purchase. Card networks send these codes to merchants to indicate why a chargeback has been filed. 1. Visa Chargeback Reason Codes. September 2011: 5. Chapter 4: American Express Chargeback Reason Codes. This chargeback reason code was retired by Visa in April 2018. This reason code means that the customer claims to have received goods or services that were damaged, defective, or otherwise unacceptably faulty. July 2020. Learn more about Mastercard chargeback reason codes. These codes are notoriously inaccurate; in fact, first-party fraud is predicated on reason codes being inaccurate. Reason codes vary by card brand. 2. This code is used when the cardholder claims that they returned merchandise, but the merchant did not provide them with a refund or replacement. Consumer Clarity prevents many unnecessary chargebacks by making more transaction information available to cardholders. 7 Violation for Coercion Claim. 4807 Warning Bulletin File. By taking the action advised by Mastercard’s logic, merchants and acquirers will be more likely to receive an authorization approval. Visa chargeback reason code 75 falls under the “Consumer Disputes” category. Customer disputes are a reality of accepting credit card payments. 75: Cardholder does not recognize transactions. Description of Change Where to Look • Increasing the CVM Limits in St. Stop fraud, break down data silos, and lower friction with Sift. Appendix Chargeback Timeframes for Laser. non_receipt: The buyer claims they didn't get the goods or services. See the SNAD filing reason codes section for valid values. Chargeback time limits vary widely depending on the issuing bank, and the chargeback code or reason. Response Code: 37 - Contact Acquirer Security Department, Retain Card. Other reason codes address entirely understandable reasons for cutting a merchant off from their credit card processor, like participating in money-laundering schemes, colluding with other merchants to fix prices or. If the dispute is successful, funds are taken from your merchant account and a strike is made. Merchant must provide proof of authorization. Summary of Changes, 13 December 2018 The following are changes with the most recent publication of this document. mastercard chargeback reason code 37. Lucia to 135 XCD • Increasing the CVM Limits in Sint Maarten (Dutch Part) to 90 ANG Chapter 2: Average chargeback rates; Chapter 3: Chargeback Reason Codes Guide; Chapter 4: American Express Chargeback Reason Codes; Chapter 5: Mastercard Chargeback Reason Codes; Chapter 6: Visa Chargeback Reason Codes; Chapter 7: Chargeback responses; Chapter 8: Chargeback response templates; Chapter 9: Chargeback accounting; Chapter 10. Cardholder-Activated Terminal (CAT) 3 Device. 0 to 5. chargeback reason codes REASON ODE ENCYCLOPEDIA sift. 6. The charge you submitted did not receive a valid authorization approval code for the amount of the charge. It allows an independent third party (card network) to review the case and make a. 1: Merchandise/services not received Visa uses this reason code when a customer claims they didn’t receive the goods or services they ordered from your business. The code can be used in multiple specific situations, many of which had their own individual codes at one time. Or fill in the chargeback form because it seems easier than contacting the merchant directly. Address Verification Service, or AVS, is one of the most widely used payment card fraud prevention tools among merchants in the US. Lack of proper chargeback reason codes. 5 billion in 2023. 1 to RC 13. Each of the major card brands, including Visa, Mastercard, and others, have their own system of reason codes. Visa chargeback reason code 83 falls under the “Fraud” category. We have mentioned all the chargeback categories above to explain the Chargeback Reason Codes according to the card networks. 46%: 1. In both instances if the Merchant wishes to withdraw from an arbitration case, Visa will charge the amount of 500. Average Chargeback Ratio: 0. Otherwise, the bank may reject the transaction. It covers topics such as chargeback rights, time frames, reason codes, arbitration and compliance. 2. “Non Fraudulent” ChargebackDepending on the circumstances, chargeback fees typically vary anywhere between $5 and $100 per incident. Nevertheless, you must respond to the chargeback based on the given code. 2: Cancelled recurring transaction: VCR Dispute Reason Code 13. 4853 – Cardholder Dispute – Goods or Services Not as Described or Defective. The chargeback process has been around for decades. [noun]/* kre • dǝt • kard • dis • pyōōt/. The issuer generates a claim, then transmits it to the merchant’s acquirer, as well as to Visa, as a means of noting all reported fraud incidents tied to the merchant. 60 due to merchandise, fees, overhead, and other sources of loss. Most acquiring banks put a timeframe on when customers can initiate a chargeback for a purchase. EMV has been a mostly global standard since 2004. 100007:. 4853 Cardholder Dispute. The list of chargeback reason codes in this article is organized by card brand and type of dispute. 1 Chargeback Handling Guidelines 20 10. For example, the merchant bills the cardholder in installments. 3. If one member believed the other violated a Visa rule when handling a chargeback, they filed a pre-compliance chargeback for compensation. The shorthand description is “Fraudulent Processing of Transactions. Chargeback time limits vary depending on the reason for the dispute. Chargebacks can happen for a variety of reasons (causes are explained with a reason code). Invalid Reasons for a Dispute. Step 2 | Identify the Reason Code. Code 3000: Fraudulent Transaction - Card Present Environment. 1. Acquirer Use of Message Reason Code 7623. Chargeback Reason Codes; Mastercard Reason Codes; Chargeback Rebuttal Letters; CONTACT. Although there have not been major updates to Mastercard’s chargeback rules in 2022, there were a few notable changes in 2021. It can range from 60 to 120 days from the billing date. There is a USD 25 limit for the First Chargeback (Reason Code 22). In most cases, though, cardholders have 120 days after the original purchase date to dispute the charge. However, rules from Mastercard® and Visa® allow some chargebacks to be raised up to 540 days from the date of purchase. ” This reason code has been retired by Mastercard, but it was used when the cardholder did not receive the goods or services they purchased. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. About Mastercard chargeback reason codes Reason codes are alphanumeric codes that provide the justification for granting a chargeback. Testing. 11, 16. 4808 Authorization-Related Chargeback. Code. Processing recurring payments increases your susceptibility to chargebacks. In 2020, MasterCard revised their chargeback rules and eliminated the “second chargeback” step. Cardholder Disputes. The merchant breached predetermined chargeback thresholds. 65% + 10¢ Visa Rewards Signature: 2. ECM monitors first presentment chargebacks regardless of reason code or transaction type. Credit card fraud is a big problem for eCommerce merchants, leading to many true. mastercard chargeback reason code 37. Reason Code 34 “Point if Interaction Error” Ch. “It’s a lot tougher with. This process is called. chargeback: The buyer filed a chargeback with the credit card issuer. Chargebacks result from a customer questioning or disputing a transaction with their issuing bank. Reason code 4853 indicates the broad category “Cardholder Dispute,” which in general means the cardholder was not happy with a purchase and blames the merchant. The cardholder was a true victim of fraud (and rightfully) worked with their credit card issuer to get their money back, or the cardholder is trying to scheme their way out of paying by claiming they were a victim of fraud. Reason Code: Numeric: Code for the chargeback request (see below). The reason code may not reflect the true reason for the chargeback. This guide is updated regularly to reflect the latest rules and. Chargeback Reason Codes Fraud – Card-Not-Present (CNP) Network Reason Code Bank Initiation Timeframe Accel 81 120 calendar days from transaction processing date American Express FR2, F14, F24, F29 120 calendar days from transaction processing date Discover 4752 AA, 7030 UA02 Within 30 calendar days from the close date of the TRR Mastercard will eliminate dispute Reason Code 63 “Cardholder Does Not Recognize”. Global chargeback volume topped 615 million cases in 2021, and was estimated to cost merchants nearly $117 billion in revenue. Card networks send these codes to. Field name: reasonCode. 2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. July 2011 Chargeback and Exception Processing Guide 3 The Chargeback Cycle. Chapter 3: Chargeback Reason Codes Guide. 195 Acquirer Use of Message Reason Code 7627-No MAC Provided. Every of the major card brands, the inclusion of Visa, MasterCard, and others, has its acknowledged system of reason codes. Mastercard Issues Guidance Clarifying How to Manage Chargebacks During the Crisis. . 3), the acquirer has 18 days to respond to the dispute • For Visa Collaboration reason codes (RC 12. ”. 4853 – Cardholder Dispute – Credit Not Processed. 4, MasterCard 4837, AMEX F29, Discover UA02, and so on). What is Mastercard chargeback reason code 4849? Mastercard chargeback reason code 4849 falls under the “Fraud” category. We’ll start with the bad news: Chargebacks increase by over 20% each year. Mastercard chargeback codes are broken up into many categories, but there are four that relate most to merchants: Authorization-related. 195 Acquirer Use of Message Reason Code 7627-No MAC Provided. Chargebacks were originally initiated as a means of providing consumer protection from fraud. The chargeback notification for the acquirer/merchant will contain the reason code and further information about the disputed transaction. Mastercard chargeback reason codes. Everyone has had the experience of buying. Amex continues to operate as both a card network and a bank. Retry after 8 days. 1, which covers duplicate processing errors, and 12. This scenario applies when the arbitration was raised by either the. Mastercard Chargeback Reason Code 71: Disputed Amount. The merchant did not receive any returned merchandise. The tickets were held at the box office, and no signature, swipe or imprint of the card was obtained when the tickets were released. 1 applies when the issuing bank receives the same transaction more than one time. The most comprehensive guide to chargeback reason codes. Mastercard: n/a This chargeback is caused by Authorization. . As things currently stand, when an issuer believes that their initial chargeback was valid and the evidence submitted with the second presentment. For example, if the agency fails to provide. Addition of pre-arbitration cycle; April 2020. This indicates that the merchant has failed to respond to a transaction inquiry before the deadline elapsed. 4. During this process, the representative of the institution examines the reasons’ list. Reason Code: Numeric: Code for the chargeback request (see below). Visa Reason Code 13. The card scheme receives the chargeback and forwards it to the acquirer. While the updates have been published, they do not go into effect until Oct. This chargeback will include a description that provides additional information: Digital Goods $25 or Less. 4% decrease:. The third digit indicates the specific reason within that category. . What is Mastercard chargeback reason code 4812? Mastercard chargeback reason code 4812 falls under the “Authorization” category. 11. See full list on chargebackgurus. 4863: Cardholder Does Not Recognize—Potential FraudThe chargeback timeline can be based on one of several start dates: If the delivery date or service performance date was not specified, the issuer must wait at least 30 calendar days after the transaction processing date to initiate the chargeback but not exceed 120 calendar days. The good news is that most of these invalid claims are disputable by the merchant. However, Visa is the largest card brand in both the United States and the world. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. Build & Submit a Representment Case in 4 Steps Change of Chargeback Reason to an Authorization-related Chargeback Replace ‘Change of Reason within the Cardholder Dispute Chargeback’ with this section. Mastercard chargeback reason code 4870 is one of the numeric labels assigned by banks to each customer dispute, indicating the given reason for the claim. chargeback meaning. In the Mastercard chargeback process, an issuer can escalate a dispute and file a Pre-Arbitration case. Mastercard Reason Codes the Complete Merchants Guide 2021-2022 Form. Acquirer Use of Message Reason Code 7623. 4 – Counterfeit Merchandise, which applies only to physical products. The ECI value tells you what to do next in a 3DS transaction — proceed, reject the purchase, or try again. Mastercard Chargeback Reason Codes Fraud 4837 No Cardholder Authorization 4840 Fraudulent Processing of Transactions 4849 Questionable Merchant Activity 4863. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. In short: yes. com. These schemes govern the chargeback process and each one has their own rules for when a customer can get a chargeback. This means some chargebacks with a fraud or authorisation reason code will be automated and the chargeback will be debited from the merchant's bank account. Mastercard is one of the world’s most widely accepted forms of payment, with over 190 million merchants accepting the card globally. This cannot change once the value is set. ”. Chapters 1, 2 and 5 Chargeback reason codes identify the general reason behind a chargeback. 5 Visa Fraud Monitoring Program. 83: Fraudulent Mail/Telephone/eCommerce Transaction. 6. They may have returned an item, for example, or perhaps were billed for a service. Most of that increase is attributed to dispute fraud. Documentation must be a direct result of cardholder communication. UA10 Request Transaction Receipt (swiped card transactions) UA11 Cardholder claims fraud (swiped transaction, no signature)Goods / Services Damaged or Defective. Mastercard uses reason code 4842 for late presentment chargebacks, but the conditions are considerably more complex. Some disputes are filed because an unauthorized third party used the card, but many consumers dispute their own transactions for one reason or another. Representment Documentation. ”. Expedited Dispute Resolution forms will not be allowed. This code means the cardholder claims that the goods or services they received don't match the description provided by the merchant. 4853 – Cardholder Dispute – Credit Posted as a Purchase. Reason Codes Category 4: Processing Errors. This is common when authorization is invalid or incorrect (wrong account information, pin, etc. 0: Updated report version from 1. This would be filed using reason code 12. TC40 is the name of the report that issuing banks send to Visa to report fraudulent transactions as part of its Risk Identification Service, and SAFE ( System to Avoid Fraud Effectively) is Mastercard’s analogous fraud monitoring program. 37: Fraudulent Processing of Transactions: 40: 2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. It’s typical to see fraud chargebacks roll in 2-3 months after the initial charges took place. Declined Authorization Authorization Visa Code: 11. 9808;. 4834. 2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. After the issuing bank’s unsuccessful attempt to identify the transaction for the cardholder, the chargeback process begins. Duplicate Processing: 34: Card Not Valid or Expired: 35: No Cardholder Authorisation: 37: Fraudulent Processing of Transactions: 40: Cancelled Recurring Transaction: 41: Late Presentment: 42:2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. According to recent estimates, US credit card transaction volume was primed to top $3 trillion in 2022. According to Discover, cardholders officially have 120 days from the date of the transaction to initiate. 196Our ultimate Discover merchant chargeback guide contains all Discover chargeback reason codes with an in-depth explanation. ” Mastercard has retired this reason code, but it was used when the cardholder claimed they never received a refund or credit the merchant promised them. Friendly fraud. Credit Card Activated Telephone Transaction: 59: A chargeback reason code is a 2-to-4-digit alphanumeric code provided by the issuing bank involved in a chargeback, which is meant to identify the reason for the dispute. A credit card dispute (or chargeback) occurs when a cardholder registers a formal complaint against a merchant regarding a. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. Chargebacks. CVV2. 0% ratio. For example, if their card was stolen or the magnetic stripe is copied and used without their knowledge. Always submit an authorization request, no matter the transaction amount. . UA05 Fraud – Chip Counterfeit Transaction. Only use EMV-compliant terminals. The role your bank or credit union plays in the chargeback process. Prerequisites 1. Unauthorized returns (R05, R07, R10, R29, R51): 0. UA02 Fraud – Card Not Present Transaction. The shorthand description is “Transaction Not Recognized. It is subject to change and may not include every currently known dispute reason code. For a debit card, the fraud liability is $500 if reported within 60 days. How to test a dispute. All chargebacks start with a customer making a purchase in person, in an app, or online. The shorthand description is “Credit Not Processed. . These mandates often involve changes to the transaction process, the addition or removal of certain chargeback reason codes, or changes to the various phases and deadlines involved in the chargeback process. 2025—Mastercard Rebranding of the Recurring Payment Cancellation Service” that included. In the end, the only real defense against a chargeback tied to an authorization hold is to address them as part of a broader chargeback management strategy. In fact, CNP fraud now accounts for a staggering 80% of all fraudulent transactions in the US. Create this form in 5 minutes!Some credit card companies also include a short phrase describing the code and chargeback. Which is meant to know the reason for the dispute. instead of chargeback reason codes Chapter 3—Dual Message System Chargebacks, Overview, Chargeback Message Reason Codes, First Chargeback: MTI 1442 Removed all references to chargeback message reason code 4802—Requested/Required Information Illegible or Missing as announced in Global Security Bulletin No. Chargeback is the process of a bank sending a back a debit or credit card transaction through Visa, MasterCard, Amex, etc. The actual underlying cause of this chargeback is usually either true fraud or friendly fraud. Depending on the bank, chargeback fees can range anywhere from $20 to $100. The networks say merchants have a 45-day response window, but the Chase credit card chargeback time limit for merchants is 39 days. When a fraudster places a transaction using stolen payment credentials, it may result in a true fraud chargeback under this reason code. Summary of Changes, 20 November 2017 This document reflects changes made since the last publication. Reasons why chargebacks happen. If the dispute is deemed valid, the bank or credit union proceeds to issue a chargeback to the merchant. 6. The shorthand description is “Missing Signature. Visa’s process introduces four dispute categories and associated numerical labels (Fraud – 10, Authorization – 11, Processing Errors – 12, Consumer Disputes – 13) under which the renamed reason codes will be placed. Mastercard chargeback collaboration period is between 24-72 hours. In 2021, the main update was the streamlining of their list of chargeback reason. If there’s a mismatch, this suggests that the buyer might be engaged in. . Added 2 bullets: Taiwan only and Mastercard Biometric Card to bullet list No Cardholder Authorization Added under CAT 2 Transactions MCC codes Updated bullet: Properly identified Mastercard. A02 No Valid Authorization. In 2020, MasterCard revised their chargeback rules and eliminated the “second chargeback” step. Take, for example, a reason code 4853 chargeback claiming that merchandise or services ordered were not received. 58%: 70. Description of Change Where to Look • Increasing the CVM Limits in St. This reason code means that the cardholder is claiming that the merchant never provided the goods or services that they paid for. ”. 96%: 0. The issuer reviews the case, assigns a reason code, and initiates the chargeback. Visa’s rules allow merchants to fight chargebacks by presenting the charge a second time along with evidence supporting its legitimacy. This code is now obsolete, and issuers have been instructed to use code 4834 instead. 1: Services not provided or merchandise not received: VCR Dispute Reason Code 13. The shorthand description is “Questionable Merchant Activity. MCC 5815 — Digital Goods: Media (Books,. A reason code is how banks categorize the reason for a chargeback. If the order was genuinely not as described, then the cardholder has a case. By default, payments should be auto-captured, but if this fails, you have the option to manually. Reason code 4855 chargebacks must be processed within 120 calendar days from the settlement date. 1 EMV Liability Shift Counterfeit Fraud 81(3) 10. In simple terms, an Electronic Commerce Indicator (ECI) is basically a 3-D Secure response code. UA01 Fraud – Card Present Transaction. Card Network Reason Code Detail; VCR Dispute Reason Code 10. Friendly fraud occurs when a customer accidentally or deliberately files a chargeback on a legitimate transaction, instead of trying to first obtain a refund from the merchant. 4849 – Questionable Merchant Activity – Questionable Merchant Audit Program (QMAP). American Express Chargeback Reason Codes 32 Appendix F Discover Chargeback Reason Codes 41 . [noun]/cē • vē • vē • tö • kōd/. 1 Transaction Flow 2. 1 Purpose of This Guide 1. Get your complete guide to Amex reason codes, including all the detailed information, chargeback time limits, and other important information you need. Here are some chargeback reason codes by card type. The codes also appear on financial reporting associated with disputes. 11, 16. mastercard dispute form. Mastercard Chargeback Reason Code 73: Duplicate Transaction. [noun]/* rēzən kōd / A chargeback reason code is a 2-to-4-digit alphanumeric code provided by the issuing bank involved in a chargeback, which is meant to identify the. for chargeback reason code 4863 (Cardholder Does Not Recognize). Versions Affected: v5, v6. mastercard chargeback reason codes. Chargeback reason codes. most cases will have 120 days period to raise a chargeback.