Terrible Telkom!!

My Telkom line has been off for 2 weeks now apparently for owing about R2300 while they are taking money from my account every month. When I finally get to speak to someone they are not so helpful even after sending my bank statement to prove payment is up to date I'm still put on hold and they claim that they have escalated the matter but no one is getting back to me on feedback which I don't think takes a whole 2 weeks to sort out. Who do we now speak to with such matters because call centre agents can only do so much and managers never want to take our calls instead we are brushed off or better yet we are told that they are off line and systems are down. It's really infuriating as I still have no answers as to why my number is still blocked.