Dear Thomas,
Join the group. Behind you are other 400 people! who has the same problem. They are the worst of kind. I am afraid that you will never see your money back. One is in Benin and all together they are trying to vanish any evidence about ghost companies they opened all over the world. I begin to believe this is a global scam. For sure Interpol, FBI and others eventually will get involved. If you need , I can give all information about residence of the above, the lawyer who handles the Greek victim case etc.
But you could also spread the word about the scammers. At least to save others.