Card Issuer
Mastercard
Reason Code
4849
Category
Fraud
Mastercard confirmed that the merchant violated their Integrity of Brand and Network rule (Rule 3.7) more than twice within a case detailed in the noncompliance confirmation letter.
The merchant is suspected of fraud and placed under stricter scrutiny.
Stick to Mastercard rules.
Cardholders or issuers can only file this claim within 30 days of receiving the noncompliance letter and the chargeback processing date.