Diassapointed... Vodacom Help!!!!

I have a contract where I receive R165. 00 monthly airtime and for the past few months I have noticed that my airtime is magically disappearing . I tried to find out via Vodacom itself that was off no help I the decided to check by dialing *111# and I checked under content services and it says a subscription to "hunky dory" which I have never subscribed to so without my permission funds were being deducted from my monthly airtime which has costed me more than I signed up for... I'm calling on Vodacom to please assisting to resolve this issue and to refund my airtime deducted without my permission!!!!!!