Using account credit for payment

[phm]

I have a $50 credit on my account. How can I use this as payment instead of my monthly top up. The system doesn't recognize that I have a credit and keeps charging my credit card instead of using my credit.

[Fariba]

Hi,

I have some amount of money in my current balance but each month the payment is charged on my credit card. How can I force using the current balance towards my monthly payments?

[CottageGirl]

How do I get lucky to take money out of my account FIRST before charging my credit card.

[Cherry]

Why is my leftover balance never used towards my monthly bill?