Wonga has literally ****** my money!!!

I had a micro loan with a 6 month repayment. The last of these payments was July. They took out double on the 27th. After many emails and false promises 11 days since they essentially stole my money and still they have not repaid me. If I still owed a balance then fair enough. But now they owe me money and nothing!! If I owed them I would have to pay huge interest and they would be calling me daily.... Well today is the day I'm officially fed up. I reported them to the credit ombudsman this morning for poor business practice and hope they get sanctioned. If I cant get my money back at least maybe they'll get penalised.