Pathetic Service

last month I called into Telkom to advise that I had not been debited, the consultant advised it was an error on their part and that I would be debited next month - my line has now been suspended - my ITC score has been affected. late payments fees are being charged. I called in again today only to be told that there is no debit order loaded on my account? I now have to confirm bank details etc. my line is less than 5 months - all of these details were confirmed on the sales call as well. I was told that a manager would call me back but still nothing.