Amex / C31: CNP, Physical Goods
Each reason code has it’s own set of evidence you can use to get a chargeback reversed.
The usable evidence is further defined by transaction modifiers such as card-not-present (CNP), physical goods, digital goods, site-to-store, car rental, hotel, and many more.
This template will help you understand the evidence and build a strong representment document for Amex Reason Code C31 (CNP, Physical Goods).