If you are the holder of a Synchrony Mastercard (probably as a Toys R Us card replacement), you have the following options for paying each month:
- Online: Log in to your account here to make your payment.
- By Mail: Send your payment to the following address: Synchrony Mastercard, P.O. Box 530939, Atlanta, GA 30353.
- By Phone: The Synchrony Mastercard customer service phone number for payments is 1-855-389-2359.