No feedback on ********** Contract

Your ***** and after sales team are the worst in getting back to customers. There is an additional ********** contract reflecting on my account that you have been charging me for since April. I have reported it, signed an affidavit and repeatedly called to follow up on this and keep getting told it is being investigate and someone will call me back. In particular, Mpho in your after sales department has promised me on 3 occasion either her or the investigator would call me and guess what - no calls! However I have conveniently received my next bill which again reflects this additional number I have no knowledge of. The next call I make will be to cancel my contract