********** charging of content services and extremely high data charges

I have been receiving uncharacteristically high bills for the past few months and when I investigated I found out that I was subscribed to "content services" which costs me ~R420 per month! I never subscribed or gave my consent to be subscribed to these services and when I tried to cancel them on the Vodacom website, I could not do so because of an "error"! This means Vodacom entered me into a contract without my consent (please note that a contract can't exist without consent of all parties) and then proceeded to charge me according to this contract that legally can't even exist.

I also receive very high data charges, but I rarely receive an SMS to inform me that I am out of bundle data.