Bad Service with CellC Fibre

I have experienced shocking service with CellC Fibre to home. They disconnected my Fibre, claiming non payment despite debits going through my account and their Call Centre does confirm receipt of the payments. The CallCentre also does not seem to track calls, so everytime you call, there is no record of previous calls one would have made, which means they cant track anything. Its been 3 weeks since I started calling them to fix my line to no avail. No one seem to have a clue what is happening there. HELP PLEASE and RESTORE MY CONNECTION!!!