Get quick access to your account as a Mercury Mastercard Credit cardholder. Information includes logging in, making an online payment, and contacting customer service.
Note: Mercury MasterCard Credit Card is issued by First Bank & Trust (and marketed via Credit Shop.) Therefore, all correspondence and inquiries go through First Bank & Trust on behalf of Mercury credit card.

Mercury Credit Card Login and Payment Access
Mercury MasterCard Credit Card Customer Service – Assistance & Payment by Phone
- Mercury MasterCard customer service phone number: 1-866-686-2158
- International Mercury Credit Card customers call collect for assistance: 1-706-494-5025
Mercury Credit Card Payment Address
Mercury Card Services
P.O. Box 70168
Philadelphia, PA 19176-0168
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Disclaimer: This is an informational post to assist readers of Smart Mom HQ and it is not meant to take the place of answering business-related questions for this company. It was thoroughly researched and reliable information at the time of posting. Information and card images are credited to the company.