Declined Report: 76561198043992215 (Booyah-1-2-3-4)

Victim:
steamID: Akari
steamID32: STEAM_0:0:31040939
steamID64: http://steamcommunity.com/profiles/76561198022347606
customURL:
steamrepURL: http://steamrep.com/?id=76561198022347606

Scammer:
steamID: Booyah-1-2-3-4
steamID32: STEAM_0:1:41863243
steamID64: http://steamcommunity.com/profiles/76561198043992215
customURL:
steamrepURL: http://steamrep.com/profiles/76561198043992215

Screenshots:
I was so stupid to not even take screenshots of the chat :/
But I do have my trade history here showing the trade between me and him :

Ive known him for a while, and have trusted him for a while too. He was running a pretty big raffle group on Steam,( http://steamcommunity.com/groups/rafflewin ) and said that if i gave him my bills, i would get profits from the raffle money. Stupidly, i gave him the bills, and after a day, he removed me and now has a private profile.
If there is not enough info, or i am doing something wrong, please tell me, cause this is the first time ive done something like this.

Unfortunately without chat screenshots, the report is merely hearsay. I'm afraid there is nothing the admins can do in a case like this.