Avisbudget *****

I'm so ****ed with this guys from avisbudget.. They keep in debiting money from my account.. They said I owe them 1500..but they decided to debit 2560 from my Acc without my permission.. And then I went to one of their brach last week Friday in Mondeor to get clarity on the issue thier consultant said they get back to me by Monday which they never did.. To my surprise just this money there is another debit of 2560 from my account by them for what I have no idea... I'm even scared to leave money on that account... I didn't know that giving them my account when I was renting a car with them will result in them messing with my bank account like this.... And this is ***** now.. U can't keep on debiting money from people without their consent..