Telkom not canceling lines

I have been trying since May this year to cancel telkom fibre which I have never subscribed to. I have called the telkom call centre about 30 times no joy. Have been to telkom Clearwater store 10 times spoke to 2 store managers all they sat is we will escalate it. I am been charged for something I never signed and not using it but can't get it cancelled. Telkom is the worse to deal with