Fed up with Telkom!!

Is it even possible to rate "zero star"! I've had it with Telkom, I'm at my wits! They're sending me invoices like I owe them but I don't owe them a dime! I have been to the branch (The Bridge) several times wasting my time to sort out this mess but to no avail as they tell me it's been resolved but days down the line they send me invoices again! Howmany times must I go to the branch to have this query resolved!! I have to go to the bank every month to have the monies reversed which they just take off my account *as if* they rightfilly deserve it, and on top of that the bank charge me R45 for each reversal and this is now the 5th month this has been going on for. I send them emails upon emails and I get no response, I don't know what else to do any more. I mean I have cancelled this contract more than 2 years ago and still i'm being charged for something I don't have nor use??!! Please Telkom stop being useless and get your act together!!