Mercury Credit Card Login, Payment, Customer Service

Updated November 2, 2023 – Below you will find the key information you need as a Mercury credit card holder to access your account online, make payments, and reach customer service for further assistance. Note that the Mercury Mastercard is issued by First Bank & Trust (and marketed by Mercury Financial), and that First Bank & Trust provides many of the above services.

Online Account Access

Customer Service – Help & Pay By Phone

  • The Mercury credit card customer service phone number for payments and other assistance is 1-866-686-2158.

Credit Card Payment Address

Mercury Card Services
P.O. Box 70168
Philadelphia, PA 19176-0168