Sunoco Credit Card Login, Payment, Customer Service

Updated September 13, 2023 – Below you will find the key information you need as a Sunoco credit card holder to access your account online, make payments, and reach customer service for further assistance. The Sunoco gas credit card is issued by Citibank, and Citi provides all of the above services on behalf of Sunoco.

Online Account Access

Customer Service – Help & Pay By Phone

  • The Sunoco credit card customer service phone number for payments and other assistance: 1-866-635-7981.

Credit Card Payment Address

Sunoco Rewards Credit Card
P.O. Box 78056
Phoenix, AZ 85062-8056