Incorrect contract

I have been with vodacom on an open contract basis, and have recently upgraded my contract.

When I tried making calls I found out that they have put me on a top up contract, I phoned vodacom to rectify the problem as the phone is used for business purposes and cannot be on top up. The call was escalated and I have informed them that if they are unable to rectify the problem that the upgrade must be cancelled immediately.

This took place more than a week ago with no resolution or feedback from vodacom whatsoever.