Sorry to read about that but Curacao are really just a tin-pot useless organisation that give a fake cover to anybody applying for a licence when the websites they cover could just as easily operate without it.
Curaçao is a country.
Curacao eGaming is a criminal and anonymous venture!
If they get away with this will keep going trying to scam others too and the problem is compounded by spending more money on legal fees considering you are already 19 BTC down.
He has the option to enforce it on a 65:35 no cure no pay basis without spending one cent from his pocket.