Unauthorized Debits

a company named Roving jet is debiting money from my account, This has happened more than once, the latest debit was yesterday ( 15 Feb 2016). I would like to be refunded my money back. i do not know what this company is all about and i did not buy anything from them. How do this people get our banking details? This ******** should be exposed. clearly i am not the only one who is loosing R99 every month paying for something i do not even know. latest ref number is j***. I tried to look them up on the internet but i cannot find anything. Please refund my money and stop debiting from my account. Shameless ********, you are disgusting.