Help with contractor going MIA!

Hello Reddit,

I paid a contractor to order some windows for me in July. He completely disappeared on me. Won't reply to messages or calls. I obviously never want his services but all I have is an invoice and and bank transfer to prove that the windows were ordered for me. Everything is in his name. He did some work for my friend and I met him twice seermed nice! I'm really shocked by the behavior.

Question, who do I get my money or the goods?

I looked up small claims disputes because it's about 800€ only but I'm wondering if anyone has any experience pursing this kind of issue?

:( all advice welcome