Something similar happened to my wife a few years back buying a purse on ebay. She was convinced to pay via non-paypal means and never heard from the person again. I was able to do some good old fashioned detective work and track down an address. I called the authorities but they said the theft had to be over $10,000 for them to get involved. They said they just don't have resources to deal with all the cases for money less than that. I was persistent and started calling the house, talking to friends, neighbors, relatives, realtor (the house was listed for sale), and even had a friend that lived in the area knock on the door and ask for the money owed. Eventually they got tired of dealing with me and sent the money back. Don't give up, you have a ton of support here.