An autopay option that will allow a fixed amount, but would also allow the entire balance to be drafted if the bill is higher than the fixed amount.

Our customer has her draft set up with a fixed amount of $75, but since it was less than the bill amount, it only drafted the $75.

She likes to keep a credit on her account, and her balance is typically lower, but due to the lower temperatures we had in this billing period and the fuel adjustment cost, her bill was almost $200.

She didn't realize that, with her autopay set to a fixed amount, it wouldn't draft the entire balance if her balance was higher.