Vodacom are *******

I was mislead by vodacom and they got the recordings and acknowledged misrepresentation from their sales person. I get called and get told that the contract will be cancelled end of Feb and all money refunded to me. Come 01 March I get charged R530 and try and cancel numerous times. I finally call the call center again and conveniently Vodacom system are down and unable to listen to previous voice recordings. But get told that your contract will be cancelled end of March but you are liable for another R530 so in actual fact Vodacom has ****** R1060 from me. If they do this to a 1000 people it massive amounts they *****ing from us!!!!