Discover reason codes - Chargeback Expertz

Discover uses the four main categories to organize its reason codes: Authorization, Service (Discover’s name for Card Member Disputes), Fraud, and Processing Errors. Discover has just one additional category to classify one reason code: Dispute Compliance.

Code	Description	How To Win
AA	Cardholder Does Not Recognize	
AL	Airline Transaction Dispute	
CA	Cash Advance Dispute	
CD	Credit Posted as Card Sale	
DA	Declined Authorization	
DP	Duplicate Processing	
EX	Expired Card	
IC	Illegible Sales Data	
IN	Invalid Card Number	
LP	Late Presentment	
N	Discover Network ATM Transaction – No Funds Dispensed	
NA	No Authorization	
NC	Not Classified	
P	Discover Network ATM Transaction – Partial Funds Dispensed	
RG	Non-Receipt of Goods or Services	
RM	Cardholder Disputes Quality of Goods or Services	
RN2 Or RN	Non-Receipt of Credit	
UA01	No Authorization	
UA02	Declined Authorization	
UA10	Request Transaction Receipt for Swiped Card Transaction	
UA11	Swiped Card Transaction – No Cardholder Signature Obtained	
UA12	Swiped Card Transaction – Invalid Signature	
UA18	Swiped Card Transaction – Illegible Transaction Documentation	
UA20	Request Transaction Documentation for Keyed Card Transaction.	
UA30	Request Transaction Documentation for Card Not Present Card Transaction	

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