Terrible customer service Telkom Bayside Mall

Telkom has no respect for their customers, I went for an upgrade and the consultant that assisted me decided to cancel the contract without even telling me, now when the bill came I was owing R3400 cancellation fees. I went to Telkom store Bayside Mall and a consultant took my details saying she will ask her manager for solutions regarding my issue then call me the next morning. Its been 2 weeks now since I have been waiting for the call back. I am just wondering if i they expecting me to pay cancellation charges that I was not even aware of them until I received my bill? I mean if I knew that the consultant was not upgrading from my previous contract I would have said no thanks I dnt want the upgrade. But i was not given a choice to choose. What do I do now?