Worst service experience ever.

This has been the worst service experience I have ever had. I have been trying for a few weeks now to have my fixed line cancelled. I've tried telephonically (where I just get sent from one consultant to the next) and I've gone in to a Telkom shop too, where I was given a form to fill in and send back. When emailing the form back I realised the email can't be sent because the email address on the form does not exist anymore. After calling the call center I was told I can only cancel my account online. When I explained to the consultant that my fixed line is not linked to my account, this I can't cancel the contract this way I was again transferred to a different consultant whom also couldn't help me. I then decided to go the shop again to get clarity, the consultant there said he escalated the matter and I will get a call in 21 working day. I find that redicoulous. How on earth can cancelling a contract take that long. This has been an atrocious experience and after this I will never go back to Telkom again.