Synchrony Mastercard Login, Payment, Customer Service

Updated February 28, 2023 – Below you’ll find the key information you need as a Synchrony Mastercard credit card holder to access your account online, make payments, and reach customer service for further assistance. (If you are a former Toys R Us Mastercard holder whose card was replaced by the Synchrony Mastercard, this information is for you.)

Online Account Access

Customer Service – Help & Pay By Phone

  • The Synchrony Mastercard phone number for payments and/or assistance: 1-844-406-7427

Credit Card Payment Address

Synchrony Mastercard
P.O. Box 669813
Dallas, TX 75266-0760