Charged for usage after relocation was requested

Good morning to all done in by bad service. In May 2015 I moved to a new flat from the Hills to Winchester hills, After relocating and confirming that my new home was in an ADSL capable zone I had requested for my line to be moved to my new address. After speaking to a telkom operator I was assurred that I would be phoned back within 48 hours. This never happend. I gave it a couple more days and then phoned them back. After phoning Telkom again they said they have no record of the call that was logged. I requested the trasfer AGAIN and was assured a Telkom rep would be in contact, this again was not the case. After that phoned Telkom for the third time wanting to cancel my account. I was then given a bill that had accumulated to - 3500. It would have gone up as they keep adding costs. I do not mind paying for the service before requesting the transfer, but I will not pay for the service that I could not use because of Telkom's Incompetence