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:
- If you’d like to pay your Mercury credit card bill online, log in to your account here and make a payment.
If you prefer to pay by mail, send your payment to the following address:
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.