How did you contact them to request interest back?

I to have been a victim of wonga taking money out of my bank account. Like the others I have never had any dealings with wonga but they took £240.15 out of my account. It is currently being investigated by nationwide and I am awaiting for a response. With regards to contacting the police do I just go into local police station? When my husband contacted wonga they informed him that they had not made any transactions using either of out debit cards, but my bank account reads different. I am still awaiting contact from their fraud department, who conveniently do not have a direct number. I think this may well be because they would have far to many angry NON CUSTOMERS ringing. Is Stella still interested in reciving information about Wonga?