Early cancellation

Vodacom is kaak I called in for an early cancellation January only to find out that the consultant that was assisting me decided to upgrade my contract. Who the **** said I want to upgrade?? I called again march AGAIN the person assisting me cancelled one and there were supposed to deduct for the last time last month. I just got a notification that I’m owing. How ?? I just called them no apparently I have another account?? Your email address for your complaint department doesn’t go through. Not after being treated like **** by your consultants and you expect me to pay money that does not make sense.