You can pay your Old Navy credit card bill in the following ways: Online: Log in to your account and make a payment here. By Mail: You can send your payment to the following address: Old Navy Credit Cards, P.O. Box 530942, Atlanta, GA 30353. By Phone: The Old Navy / Synchrony Bank credit card Make an Old Navy Credit Card Payment. Select “View and Make Payments” from the “Payments” drop-down menu to pay online. Click “Select Payment Methods” to view your payment options. Choose the payment method. Enter the amount you wish to pay and the date you’d like the Old Navy payment to post. With the Old Navy Visa Card Get A $5 Reward Card for Every 500 Points, Which You Earn Through Purchases Made On The Card. That’s 5 Points for Every $1 spent. Apply Today!