Discover Reason Code AA

The cardholder doesn't recognize the charge on their statement.

Often a legitimate purchase the customer doesn't recognize from an unclear billing descriptor, not necessarily fraud.

Check your billing descriptor before assuming this is real fraud — it's a very common, fixable cause.

Order record tied to the cardholder's name/email, and your billing descriptor as it appears on statements.

A billing descriptor that doesn't clearly match your storefront or brand name.