Hello @ERButch. Here are the steps for making a payment on usaa.com.
1 Locate the credit card account in the banking accounts under My Accounts Summary.
2 Locate the dropdown menu next to the credit card titled I Want To and select Pay My Bill.
3 Select a payment amount, payment date, and payment account.
4 Verify the information and select Yes, Pay this Bill.
5 Confirmation page displays. Select Close or the X in the right corner to exit
Hope this helps. -Colleen