Disappointed

I received notification that my contract was due for an upgrade. Got my new phone last month and to my surprise, have been billed almost R400 more than what I signed up for. When I called customer care, was informed that this is because I was ONLY 22 months into my contract and not 24 so am being charged for the old phone as well. Why would you notify me that I'm due for an upgrade ONLY to be told a month later that this was not the case. Apparently its the consultant's fault for not informing me of the terms! I find that unacceptable and misleading!!!!!<br>