Instant reference for Visa VDR, Mastercard MDR, and Amex CMG dispute reason codes. Look up any code to see the dispute category, required response documentation, filing deadlines, and arbitration rules. Client-side. Zero PII.
Visa VDRMC MDRAmex CMGZero PIIClient-Side
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⚠ Reference data as of May 2026. Always verify deadlines and requirements against the current Visa Dispute Resolution Rules (VDR), Mastercard Dispute Resolution Rules (MDR), and Amex Chargeback Management Guidelines (CMG) before filing. Scheme rules update periodically.