Vodacom charges for services not contracted!

Vodacom started charging me for gamemine and entertainment services that I never subscribed for. The lame excuse is that I registered by mistake when I clicked on the services. In the 25 years I have been a client of Vodacom I have always signed contracts for any subscriptions - now I subscribe by mistake? I have reported this in March and requested that it be blocked and yet it continues to reflect on my account. I paid my normal contractual subscriptions and refuse to pay for ******* subscriptions - now I am being threatened that my services will be stopped. This is unacceptable!