Telkom service is terrrible!!!

So on the 1st September I called in and cancelled m cellphone contract and the consultant assured me that the debit order would only be for the remaining contracts I have with Telkom.

However, on the 1st of October the full amount went off, and the 1st of November as well, I then decided to to go the branch in woodmead and they couldn't help me and they said that their systems were offline. The consultant sent me a link, and I manage to send another request for cancellation.

I have decided to reverse the full amount and now, Telkom has been demanding that I pay the amount or face credit bureau etc. I'm writing this here so that I get assistance from someone from Telkom because their consultants have not done this and someone must reverse those amounts that were deducted after cancellation...