"Services" I have not agreed to added to account and DEBITED without my knowledge

I have just checked my phone bill for the last few months, this month I have purchased nothing via Vodacom, and have not exceeded any of my allocated call time/ data etc, but for some reason my bill is OVER the amount that I originally signed to pay (It was in the region of R800 originally) it is now sitting at R1131?!?!?

I notice something called "content services" , "vodacom live" & "entertainment services" has been added to my bill and is being debited off my account every month. I have never agreed to these things being debited or was I aware of them. I am not sure how many months this has been ****** from my account, I have emailed Vodacom, but no one has gotten back to me.

Is this even legal?