amex
American Express F24: Authorization Fraud Defense
Win Amex F24 unauthorized transaction disputes with compelling evidence.
F24
Reason Code
20
Days to Respond
1
Required Exhibits
What This Code Means
No Cardmember Authorization is a dispute reason used by AMEX when specific conditions indicate a dispute.
To successfully defend against this chargeback, you must provide compelling evidence that demonstrates the transaction was legitimate and the cardholder received the product or service as described.
Required Evidence
Transaction Details
- Merchant/Business Name
- Order ID
- Order Date
- Transaction Amount
- Customer Name
- IP Address
Required Documents
- Proof of Delivery
Recommended (Optional)
- Usage or Access Logs
- Device Fingerprint Report
- Customer Communication Logs
What Your Response Will Include
Your packet will contain a professional narrative addressing:
- transaction Overview
- authentication
- delivery
- usage
- policies
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