Report a problem shopping

Thank you for contacting Mastercard with your concern about a merchant/retailer while shopping. Mastercard will engage the necessary parties to work through this reported incident. If the issue you are reporting is not listed below or you require immediate assistance, please refer to the number on the back of your card to contact your issuing bank.

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If you encounter problems submitting this form, please call Mastercard Global Customer Service at +1 (636) 722-6176.