Check Debit Card Balance Check Balance Of A USAA Prepaid Debit Card Over The Phone?

Check balance of a USAA prepaid Debit card over the phone? - check debit card balance

So I have a prepaid debit card from my parents USAA membership. It is a green card lending business. It MasterCard. Someone knows the number to check the balance on your phone? I've got my number, and I know that I can not find ...

Thanks