To log in to your Discover credit card account, go to the Discover website or mobile app and enter your username and password. If you don’t have Discover login credentials yet, enter your card number and expiration date, along with your birthdate and the last 4 digits of your SSN, to set up an online account. How long does it take for a credit card payment to post? It usually takes one to three business days for a credit card payment to post to your account if you pay online or by phone. If your credit card is linked to your checking account and both accounts are from the same bank, your payment may post immediately following the transaction. To log into your Discover online banking account, you need to visit their website or open the Discover Mobile App on your smartphone or tablet. Then, follow these steps: Access the Login Page: On the website, click the “Log In” button, found at the top right corner. This will open a window for a secure login. From here you can also make payments, manage your rewards, download statements, freeze or unfreeze your account and much more. If you'd like to check your credit card balance by phone, call Discover's customer service at 1-800-347-2683. You can check your credit card balance online, through the issuer’s mobile app, or over the phone. The quickest and most convenient options are online or using your card issuer’s mobile app, both of which provide real-time balance updates. Most issuers have mobile apps, so checking your balance is as simple as picking up your phone. You can check your Discover card application status online or over the phone: (800) 347-3085. Both methods are available 24/7. You just need to confirm your identity by inputting your Social Security number (SSN) and you’ll find out whether your Discover credit card application is approved, denied or pending. Alternatively, you can submit a payment from your online account, through the Discover mobile app, or by calling customer service at (800) 347-2683. Refer to your card's terms and conditions or cardmember agreement for any locations that accept in-person payments. What benefits does Sam’s Club Credit Card offer? Sam’s Club MasterCard offers Sam's Cash when used in club or online. Sam's Cash earned during a reward period will be issued monthly and automatically loaded onto your Sam’s Club membership. Once available, redeem it for most online or club purchases or redeem it for cash in your local club. FAQ: How do I apply for the Sam’s Club Credit ... Discover Card and Discover Bank. News, Questions, and Help from the community. *Not affiliated with Discover Financial Services You can find your Discover credit card account number by looking at the 16 digits on the back of your card. That is because Discover uses the same digits for both your account number and your credit card number. However, for security reasons, Discover only shows the last four digits on statements, online accounts, or any other communications.