Updated February 1, 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