adsl contract

I took a contract with telkom on 14/5/15. We agreed for R599 pm uncapped . The 1st month no amount went through my account. The debit order was not processed. The next month the amount that went through my account was R1779.51. The month after that the amount was R1021. After which multiple disputes was logged wirhout being resolved. Then I was phoned and informed that my line will be downgraded. I refuse to accept that . I re logged disputes. In the meantime my line is suspended and if and when I call them I get the feeling that the people assisting is not competent to do their job properley. I was told feedback will take 7-10 working days....then 10-14 days... now 4-6weeks. At this stage I am very frustrated and urgently need feedback. This morning I got a tel no of the controller but there is no answer.thanks wouter