Disgusting Customer Service

Vodacom cancelled my Internet Contract without my permission, they said that they have a recording of me cancelling, I have asked them to send me this as I did no such thing. I said that I called on the 31 March when I got a text message to say it had been cancelled and was told it was sent to me in error. I don't appreciate being treated like a ******** and being told that they will investigate and if in fact they are at fault then they will look at reinstating. The attitude I received on the phone was disgusting, was told that no one was pointing fingers - yet they have said that I cancelled it and aren't willing to give me the \recording\" they say they have of me cancelling. I also asked for a number for complaints and was told that there isn't one. I have been with Vodacom for 10 years, this is the worst service I have received from them in this time. When I upgraded my contract in March they upgraded me to the wrong package, and the free minutes and sms that I was told would carry over into the new package hasn't. Effectively I have had 400 Free Minutes and 1000 sms' ******. Very poor form Vodacom and very rude call center agents. "