Payment over suspended line

My line was suspended in July, but I keep getting billed for it.I'm being billed for the line and the adsl that I'm not even using because it's suspended.I notified Telkom of this and no one has contacted me, I have been complaining for 4months now.Yet nothing has been done to resolve this, I was out of the country and I had called Telkom to inform them of this. But still nothing was done in relation to my line.I finally went to the Telkom office in Johannesburg and was told that my line would continue to be charged even if I am suspended. I don't understand why I was told off this before I left the country.Or over the four months that I have been complaining about being billed. All I was told was that a consultant will contact me but that never happened. I'm extremely frustrated and at this point not willing to pay for those months. As I feel as though Telkom consultants have been delaying inorder for me to continue being billed.If there continues to be no progress with my issue I will have to consider suing Telkom and their consultants for their incompetence. The number affected was 27 (11) ***, can this please just be replaced quickly, it's already been six months.