report him from the steam support
here the guide http://forums.steamrep.com/threads/how-to-contact-steam-support.35773/
Your key is lost but if you have a proof, he will banish him from the trade and the game will be removed from his library
1 decade ago
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Closed 1 decade ago.
In reference to this post
http://www.steamtrades.com/trade/zAV3i/h-binary-domain-w-offers
I sent keys first and then the guy sent me the wrong game key and immediately logged off. I know that there is probably no way to get my stuff back but is there a way I can report his steam trades profile on the site?
His profile is here http://www.steamtrades.com/user/pulpo69