Phantom Phone Service

In January I had a 4mb ADSL line installed at my home in Clarens. It has been stable and I have been satisfied with the service.

My problem is that a phantom extra service was activated for an address in Harrismith that I used to live at five years ago at the same time. I've tried calling the number and it doesn't connect. Since March I have been trying to get this service cancelled and the service removed from my name. Three times I have been told it has been done, cancelled and sorted only to have it reactivated a month later. I continually get calls from Debt Collectors.

I am at my wits end - do I need to go to a lawyer over this?