So called 'subscription'

I discovered yesterday, that I have been 'subscribing' to two companies (that I know nothing about). The payment for these 'subscriptions' have for the past 4 years been added to my MTN bill, under the heading 'content', which I find very misleading and not at all transparent. Had I not recently renewed my contract to a package which has a fixed amount, to be debited off my account, this would have carried on happening.<br> I got the details of the companies that I had 'subscribed' to. On phoning, them to enquire what this 'subscription' had offered me over the past 4 years, I was told that their system could not give me that information. So for the past 4 years I have been paying for something that I do not have.<br> According to the MTN consultant, just by clicking onto their advert makes me a 'subscriber'. Under other situations if money is to be debited out of your account it requires a lot more than just clicking onto an advert.<br> I really feel very angry about this. If I add up the value of what I have paid over the 4 years, it exceeds R15000. Never in this time have I had an email from these companies, yet they have been able to get money from my account every month.