Telkom still have not cancelled my ADSL line

I went to the telkom shop in Menlyn to cancel my telkom landline on September the 7th 2015. I was then poned back saying that my ADSL line was still in use (which it was not). I was then assured by Telkom that the line would still be canceled that month. I have already submitted the cancellation forms to Telkom. It has now been 2 months later and I am still being billed for my Telkom line that I do not have access to and do not use. It seems to be impossible to cancel my Telkom line it seems that the only way to get rid of this is to go to ICASA and complain there.