You have 30k in their exchange.

Buy a flight ticket and go and visit their address. What's so hard about it? Make a video, go yourself to the Italian police in that area.

The carabinieri, believe me if you explain well they will help you instantly, just to scare them.

Also the Italian police is very friendly a lot against scams and thieves. For any logistic help in Italy I would be more than happy to help you for free.

Even travelling with you to Italy. I love Italy lived there a lot of times in my life so it would be my pleasure.

Not sure if you will ever recover the money but it's worth trying it