Rain won't stop debiting my account

I cancelled my account in February already and Rain is STILL debiting my account!! After numerous calls, not one consultant was able to help me or sort out the issue. No manager would take my call either!

The courier was sent to collect the router already and they are still debiting my account R699pm.

They owe me more then R3000 already and still they have not resolved the issue or even called me back like they promise.