American Express Reason Code M01 Chargeback Authorization
Dispute
American Express
Card Issuer Name
M01
Reason Code
Inquiry
Category
Claim
American Express sent a transaction inquiry to the merchant, but the merchant responded by authorizing American Express to process a chargeback for the transaction.
Cause
The merchant passed the chargeback.
Response
Cardholders and issuers have no limit to the number of days they have to to file a dispute related to the claim against the merchant.
Merchants have 20 days to respond to the claim in dispute.
Steps to Prevention
Always keep good credit records that directly prove you offset the transaction in dispute.
Ensure information is easily accessible when required.
