Deceiving information and unhelpful - no customer care

Vodacom direct contacted me to upgrade to a new deal, I asked if I could get a better price in the Vodacom store and they assured me that this option is the cheapest option for cell # ***. However, today I went to the Vodacom shop and could get this package for a much better rate. I also found out that Vodacom direct has charged me additional charges for items that I did not agree to. I phoned Siyabonga and he refused to reverse the contract that was telephonically instated - he referred me to cancellation department which I was transferred from one person to another then had to wait for a very long time and nobody could help me. When I wanted to activate an additional for R49/month to my contract I was refused in the Vodacom shop in Witbank Highveld Mall. Vodacom direct **** about the agreement and I would like this contract cancelled with immediate effect so that I can take out the better option.