****** subscribed me to services and debited my bank account every month without my knowledge

After struggling to get answers from my bank for a very long time about who is debiting my bank account every month (that's another fight with my bank), my bank traced it to a company called Comet Technology. I call Comet Technology, they say, that Elite Mobile authorised these debits orders as automatic services when I took a cellphone contract out with them. We're talking about seven debit orders of under R100. Which amounts to almost R700 per month! How dare Elite Mobile do this! This is thievery. I want answers as to where I approved subscribing me to these services. Where is the recording of the telephone call??? I want all my money back! People, please don't ever take out cell phone contracts with these ******. Especially if you're someone who doesn't check your bank account regularly.