MasterCard Reason Codes - Chargeback Expertz

MasterCard uses the four main categories to organize its reason codes: Authorization, Card Member Disputes, Fraud, and Processing Errors (which MasterCard refers to as Point-of-Interaction Errors).

Code	Description	How To Win
4802	Requested/Required Item Illegible or Missing	
4807	Warning Bulletin File	
4808	Requested/Required Authorization Not Obtained	
4812	Account Number Not on File	
4831	Transaction Amount Differs	
4834	Duplicate Processing	
4835	Card Not Valid or Expired	
4837	No Cardholder Authorization	
4840	Fraudulent Processing of Transactions	
4841	Cancelled Recurring Transaction	
4842	Late Presentment	
4846	Correct Transaction Currency Code Not Provided	
4847	Exceeds Floor Limit – Not Authorized and Fraudulent Transaction	
4849	Questionable Merchant Activity	
4850	Credit Posted as a Purchase	
4853	Cardholder Dispute – Defective/Not asDescribed	
4854	Cardholder Dispute-Not Elsewhere Classified	
4855	Non-Receipt of Merchandise	
4859	Addendum, No-show, or ATM Dispute	
4860	Credit Not Processed	
4862	Counterfeit Transaction Magnetic Stripe POS Fraud	
4863	Cardholder Does Not Recognize – PotentialFraud	

The Ultimate Dispute Management Resource

Download our comprehensive guide to reason codes, modifiers, time limits, and compelling evidence.