*****ing money from my bank when I don't have account or given approval for debit

Dial direct is doing ***** guys. Some gave approval on an account that does not belong to them and they now taking money from my account over the last 3 months. I called and the consultant said she would get back too me. However no on called back and I'm still getting debited. *******. I'm writing now to the ombudsman for an investigation as how many other people have been in my situation