Bad customer service

I saw an online special I called in for someone to help me get it, everything was fine until I received the actual modem and SIM card. When I called in to activate the SIM card I was told different things by different people; about the special finishing, the amount not the same as i saw online and even that data plan. I had asked to be put through to someone who could explain to me what plan showed on their records, no one could give me one single straight answer. Each and every person had a different view of what I was supposedly having until eventually I decided to cancel. Even after canceling they had taken my money and they are not refunding me instead every other month even after I've cancelled and they've received their gadget they keep on debiting my account I need my money back and I need them to stop debiting my account. Vodacom is not a good service provider or at least doesn't have people working for them that know how to treat their customers