Improper Format scammed out of a strange machina

recently, http://steamcommunity.com/id/23718273912738173 scammed me out of a strange machina. this person claimed they would give me 50 dollars via steam wallet for it. immediatly after the trade, they left, and a short time later, added me to their blocked list. this is my first time getting scammed, so i didnt think to take a screen shot. they told me that i would get the money when i restarted steam, so that is why i dont have a chat log.

Improper format, please review the guidelines here:

http://forums.steamrep.com/threads/...-look-at-acceptable-format-before-posting.51/