BAD SERVICE & UNPROMISED WORDS

I am completely NOT happy with the service from Vodacom. I was offered incorrect information on a package deal for my mobile contract when I wanted to cancel. The deal offered was 1gb free data recurring but then I saw the expiry date. I called in spoke to many consults to cancel it. I had to follow up. Then I spoke to Maria the team leader who said that she will reverse my contract and then I will be on prepaid from 1 August. This didn't happen. Maria is now not contacting me. After calling twice. I am now paying my old contract cost which was not agreed upon. I have also requested the recordings from Vodacom but they are not giving it to me to prove this wrong. My other contract has also been effected because I am not getting my 10gb night owl data. Both my contracts have been a complete mess up and now I want to cancel both packages.