Cancellation failure .

I am very iritated with telkom and my anger has reached its limits ! Despite numerous attempts to cancel my smartbroadband contract i have reached a dead end . My service was suspended 1st week of feb (after attempt of cancellation) . Until now i am being billed ,that too still incorrectly and for services i am not using ! Is there any legal way or may i have the ombudsmen number to lodge a formal complaint againt telkom .my credit record is being tarnished for no good reason by these *********** fools ! I have set numerous emails for cancellation yet i have not been contacted once ! My bill is now sitting at +R4800 for ******* .