Telkom Account Cancellation

I have relocated to Canada and before I left in May I logged a call with Telkom online using their old portal to cancel my account. This process was seamless and I got my reference numbers to my requests. It is now August and my account has not been cancelled, and I am still be billed for services that I am not using. I have contact Telkoms Online chat service and spoke to 3 agents over the last months and still non of them have been helpful. Each time my request gets escalated or reported to a manager but nothing happens. I cant believe that this can be such a difficult thing to do. Why provide a service when nothing can be done with it? Truly irritating...