Vodacom taking money

I noticed that I was being charged for a service I did NOT subscribed too. I then asked around and it seems I’m not the only Vodacom customer who is being charged R140 for some service. You cannot do this. I went into a Vodacom shop and hopefully it has been unsubscribed. The service there however was shocking!! And no one is willing to refund me!! Vodacom, this is disappointing and I view it as theft considering there are many other people in my position.