Thanks everyone for your comments, some of them were helpful!
First of all, communication with Binance support was useful, they were able to find a connection with a specific user and recommended further action through the police. They will be able to provide the personal data of the owner at the official request of the police. I'll try to go this way.
All the advices regarding not trusting has already been taken into account for the future, the question is what to do now I have some suspicions, but so far only suspicions..need to collect more evidence