Apps linked to Vodacom

After dialing *111# to load data, I accidentally went into an option which for some gaming company called N Mobile Club, I immediately escaped out of the app. This company has been deducting money off my account. I called Vodacom Customer Services to find out what is happening and was told that they can only cancel this app but cannot refund my money as these companies contract directly to networks. I ask for the number for NMobile Club which they give to me and I then phone the number and its for another business. I am so sick and tired of Vodacom not stopping these thieving companies accessing there loyal clients accounts. I never gave NMobile Club any permission to deduct money off my account, all I did was go onto there website by accident.