Frustrating and disappointing service

I signed a contract with Telkom on May this year, chose my debit order date for the 5th of every month. The debit order never goes off and every month I'm expected to pay a penalty fee for THEIR fault, they have been promising that it has been resolved and that it will go off on the day but NOTHING, i have been going back and forth trying to resolve this with most of their agents. I refuse to have my name on your bad records Telkom please fix your mess, I've had it.