Incorrect Telkom biling - Account about to be suspended

I signed up for a Telkom contract in June, and they've been overcharging me all these months. I raised the issue with them over and over again and have visited their stores numerous times to get this sorted out. Instead of giving me back the money they've been taking from my bank account, they only corrected my statements going forward. Over the months, I had been over charged by R1,001.57 to be exact while I had signed up for a R469 deal. This is unacceptable!!!

I then contacted my bank and reversed the last two debit orders so that I can pay in the difference. I went to a Telkom store (Sandton) and they told me to go pay at Checkers. When I got to Checkers, the lady at the till did not know how to process Telkom payments. So, I'm not sure if I was supposed to even be paying there. Doesn't Telkom have a bank account?

Anyway, I called Telkom again today and relayed the whole story and how now I need to pay in an amount. They gave me banking details, and said they will escalate my issue. To my surprise, I subsequently received a voice recording saying that my account will be suspended in 48 hours if I don't pay what they say I owe (R1 700 and something). This after I had just paid the correct amount.

Can Telkom please look into my case, I cannot have my account suspended when I don't owe anything. Surely, your biling issues should not affect clients!!!

It really sucks that we have to go to hellopeter to get customer issues attended to. I've given Telkom enough time, visiting their stores and calling their customer care numerous times.