Tired of Calling to Get this resolved

I have been calling telkom to resolve this and I am tired and seeking what my alternatives are now. Telkom has been charging me for an ADSL package which I didn't apply for and they have even confirmed on a call that they cannot see any application for this ADSL package. I have called and even cancelled every service I have with Telkom but they still have this ADSL service on my account and I am being charged for it. I even went into the branch at Bedfordview when I was back in SA 3weeks ago where I was told the cancellation has been effected however I still got an invoice for the same thing. I am bl**dy tired of talking to Telkom to resolve this and about to now look at legal avenues because if I had been the one defaulting for 5months I will have been threatened with legal action and blacklistings. I will also be on blast on social media around the ******* practice of charging people without their awareness which Telkom is busy doing. Very disappointed with Telkom about the handling of this and the fact that I have had to called from overseas on over 30 different occasions. Shambles!!!