Who I have the same questioned this topic

I have a prepaid phone which has the option of setting up auto-pay.  However, when I tried to set up auto-pay (on the phone and online), it only gives me the option of using a credit card -when what I want is to hook it up to my checking account.  I tried contacting customer service, but all they had to say was that I "should be able to," at which point they ended the chat session.  So I decided to ask here instead.