Incorrectly billed and suspended

Last year I was due for an upgrade, when the upgrade was processed only a SIM card was delivered. We then cancelled the contract and replayed for the contract. I got a bill that said I owed R36000. My account was debited normally for the active contract for the past 2 months. This month a debit order for R1500 and I received an SMS saying my account was overdue. <br> <br> Yesterday my line was suspended, can you please waive charges on the cancelled contract and credit the R1500 on my active contract and unsuspend line.<br> <br> And I want the 2 days of no service to be prorated on my next bill as I am being inconvenienced and losing income as a result <br> <br>