BAD SERVICE

i signed up for pricelock of R119.00 and every month my aacount is more then R900.00 what is going on there?i asked to transfer some of my credit that was on acc ********** to ********** 3,they transfer all my credit,now my sister must write a letter to transfer that credit back to me,when it was they error.I am really fed up this this service...it just shows that Dstv must have done this to alot of people who doesnt follow up on they accounts.