Found out he drives a Nissan Micra K10 1992
His another phone number 536334468 (or at least it was last year, not sure about now) and even older one: 505472111
GG (popular Polish IM) numbers: 5164062 and 41098257
ICQ: 607770250
He is easy to trace and dox because he is reusing his info all over the Internet (deepweb included!)
He's also a skid on crackhackforum.com using botnet operators' services.
True, penal code, article 286, paragraph 1 states 6 months to 8 years.
If it can be proven and if you add CC fraud and possession of marijuana the guy can start stocking up lubricants for the upcoming rectum treatment.
Not sure at how far did you get so far with contacting authorities of countries where his victims reside in but I encourage you to persevere.
Let me know if I can be of some help as I currently live 2 hours away from this clown (though I will not do anything illegal).