Overcharging me when they failed to upgrade!!!!!

I called Vodacom mid-May to cancel one of my contracts as I had noticed that I was being overcharged. The accounts department admitted it was a mistake from their side and it will be rectified. The agent from the retention center also asked me not to cancel and rather take on a new contract. He made me an offer which I accepted. The 1st of June, there was no upgrade and I was told it is too late to correct the error and it will kick in 1st July, which I acepted. Vodacom then decided to charge me an additional R200 because my contract has ended. Today is the 1st of July and when I call them, their agents put me on hold till the call gets cut off. They have overcharged me for an error they made on their side and fail to refer me to the correct people. The previous contract is not even worth the money I'm paying!!!! I want my money back and the damn contract cancelled.

Vodacom needs to hire competent staff who will be able to handle quiries! I hate that each time I call in i'm being moved from pillar to post. And nobody has answers, it's always "oh mam we see that this agent is doing this..." nobody is taking responsibility. You do not value your customers!!!!!!!