"Termoonator" scammed me 50€ too, just call PSC they will give you back your money in most of the cases (google it there are useful guides) and his psc might get banned (if you act in time)
2nd step visit your local police department, did this yesterday, they got his IP from his VPN service and in a few days/weeks he will recieve a nice letter
edit: 3rd step NEVER try to scam anyone! only the biggst scums do this ****, if you need to scam some money from kids your life must be extremely poor!
and don't say "ah damnit 25€ gone but I learnt something!" ALWAYS act! go to police it costs 0€ to ask them if they can do something (ok I was lucky the local police department leader is a fathers friend :P) but usually they can help you!