Mastercard 4863 quick reference: Cardholder doesn't recognize the transaction on their statement. Often a descriptor issue (business name doesn't match the DBA) rather than actual fraud. Merchant has 45 days to respond.
Cardholder's claim
"I don't recognize this charge on my statement."
Mastercard 4863 is often winnable with a descriptor fix. When cardholders don't recognize a charge, they file. If your billing descriptor doesn't match your DBA or storefront brand, that's the root cause. The evidence is proving the transaction is legitimate + educating the cardholder on the descriptor.
Response deadline
45 days to submit representment. From the chargeback date.
Common triggers
- Descriptor doesn't match the DBA the customer knows
- Long delay between purchase and statement makes it hard to recognize
- Cardholder truly doesn't remember
- Fraud — cardholder genuinely didn't make the purchase
Required evidence
Transaction records with matching descriptor
Show the descriptor + link to a known DBA.
Order + delivery proof
Standard evidence stack for the underlying purchase.
Customer account records
Proof of an account matching the cardholder details.
Typical win rates
| Scenario | Win rate | Notes |
|---|---|---|
| Clear descriptor + delivery proof | 55–75% | Descriptor confusion resolved |
| Actual fraud (proof rejected) | Under 20% | Concede and improve prevention |
Win rates reflect Aurai's own book across Stripe, PayPal, and Shopify Payments as of July 2026, plus public MRC Global Fraud Survey 2024 baselines. Your results will vary.
Related reason codes
4837Mastercard
No Cardholder Authorization
Mastercard's equivalent of Visa 10.4 — cardholder claims they didn't authorize the transaction in a card-not-present environment.
10.4Visa
Other Fraud — Card-Absent Environment
Cardholder claims they didn't participate in the transaction and the merchant was not in a card-present environment. The single most common fraud code in ecommerce.
Frequently asked questions
What does Mastercard 4863 mean?
Mastercard 4863 is the reason code for "Cardholder Does Not Recognize — Potential Fraud." Cardholder doesn't recognize the transaction on their statement. Often a descriptor issue (business name doesn't match the DBA) rather than actual fraud.
What's the response deadline for Mastercard 4863?
Merchants have 45 days to submit representment. From the chargeback date.
What evidence is required to fight Mastercard 4863?
Transaction records with matching descriptor, Order + delivery proof, Customer account records. Full detail in the Required evidence section above.
Can Aurai handle Mastercard 4863 automatically?
Yes — Aurai detects the reason code, assembles the specific evidence stack for it, and submits before the deadline. 25% only on disputes we win.
Reason code details reflect the current Mastercard rules as of July 2026 and may change. Mastercard is a trademark of its respective owner. Aurai is independent and not endorsed by Mastercard. Always check the current official rules before acting on any specific tactic.