Change my tariff plan twice in the same day charged for no reason

<p>I have a contract with Cell c and last year in November I was supposed to upgrade and one day in November I don't remember the date a lady by the name of Angela Alexander called me to tell me about my upgrade and I told her I don't want an upgrade and she why coz I'm not losing anything and I ended up agreeing to what she was telling me but when I got to work I realized that I don't like the phone she was telling me about luckly she called me back the very same day and I told her that I prefer to go to the Cell c store for an upgrade and she said ok and funny enough month end the amount of R695.00 was debited from my account by cell c and I went to cell c store and I was told they changed my terrific plan twice in the same day for a 1gig and 2gig and I was told to call the customer care I called them several times the is no one giving me an answer they keep on telling me they are investigating bt no one is making an effort to call me and tell me what's going on it's three months now I'm a very disappointed customer I 've been a very loyal customer but this is not how you treat your customers </p>