Telkom refuses to assist.

I have been having so many problems with Telkom!! I have now been handed over!! Please do note however I have not had internet for two months now. I have logged faults more times than I could count and have sent numerous emails and still nothing, they keep billing me for something I do not have and as a result I now need to pay extra every month to buy data from another service provider! I have also been trying to cancel Telkom since last year July but have received no assistance, I have sent many emails stating I want to cancel and I have called many time only to be put on hold or either get sent though to everyone else in that call centre. I have also gone into the branch and was told I need to cancel online, however I have been trying to just login so I could cancel but none of the login details work, I have called and been sent numerous login details but not one works. The Telkom technicians etc. that have called has made a note to cancel my account for I am unable to do it online but I have not received any assistance or correspondence regarding this matter, I have only been handed over for a service they are not rendering. Last year I moved and waited 4 month for them to come move the line for which I was billed for and my account was never credited. What else do I need to do??