Mercury Credit Card Payment, Login, and Customer Service Information

If you are a Mercury Mastercard credit card holder, either through a direct approval from CreditShop/First Bank & Trust, or through the transition of former Barclays Bank cards to the Mercury credit card, below you will find all of the information you need to pay your card bill online, by mail, or by phone, or to get customer service assistance:

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If you prefer to pay by mail, send your payment to the following address:

Card Services
PO Box 70168
Philadelphia, PA 19176-0168

If you’d like to pay by phone, or if you need other help, the Mercury credit card customer service phone number to call is 866-686-2158.