Accidently transfered money in this thing and can't get my money back!

Accidently transfered money in this thing and can't get my money back! The app didn't give me any warning that I'm transferring funds to AVO and I never signed up for an account with them. I didn't even know they existed until today. Now my money is stuck and everyone is dragging their feet. I want my money back or I'm going to the ombudsman