Bank America offers three solutions but to use them you must first pull up the Bank America web page, abkamerica,com, there you will register, after you register they will show you your options and how to apply each. It is simple and easy if you have a checking account and it allows you to pay by mail.
Some banks require you to have on line banking to use this option, some credit unions do not have on line payments, so check with your bank first they will assit you.
You can also pay by phone, or simply send them a check. if you have further questions call the number on the back of your credit card and they will help you. Good Luck..