Pending Report 76561198101425883 ( KimCamLe) Dota2items

I want to report about one incident I was cheated map yesterday.
I have a Phantom Assassins's set Gleaming Seal (or I still called the Alliance's PA, including: Cape of the Gleaming Seal, Belt of the Gleaming Seal, Brooch of the Gleaming Seal, Ornaments of the Gleaming Seal, Inscribed The Gleaming Seal) and 1 courier Smeevil. I trade them in on dota2lounge. I very like them and i wish them have nice and high view. But due to limited budget so I did not have enough money to buy tickets for the tournament. And 19:08, 12/07/2013(hourly Vietnam), there was one person on the chat channel "Vietnam", took the initiative to contact me. His nickname: ABANDONED and steam:http://steamcommunity.com/id/kimcamle. He told me that would help me up view with prices is 1 item: Totem of the Forest Hermit. I saw on the wall profile he has a lot of community rep and a lot of people compliment him is good trader. Should I trust him and trade him the Alliance's PA, courier Smeevil and Totem of the Forest Hermit.
He says to me is 11:00 on 12/08/2013 (hourly Vietnam) will be finished work and returned me: Alliance's PA and Smeevil to view the 123 number. But the day today 12/08/2013 at 08:00, I logged into steam and not see him anymore. I'm starting to think he has cheated me. I find the list of friends not seen his name anywhere.When I tried to contact him to ask what happened, he was not accept my friend request. He scam me to get my items.
I know the prices of the items I lost in value is not high, but here are the items I have struggled to get. So I write this report i hope steam can help me to retrieve items that i had been scam by him (include: Genuine Smeevil, Gleaming Seal of the Cape, Belt of the Gleaming Seal of the Gleaming Seal Brooch, Ornaments of the Gleaming Seal, Inscribed The Gleaming Seal, Totem of the Forest Hermit). I am very thankful for your help.
Finally, sorry about the inconvenience as well as reading my report because my English is not very good. Again, thank you!

Reporter:
| steamname: Hùng Nguyễn
| steamID32: STEAM_0:1:58010672
| steamID64: http://steamcommunity.com/profiles/76561198076287073
| customURL: http://steamcommunity.com/id/manhung92
| steamrep: http://steamrep.com/profiles/76561198076287073

Reported:
| steamname: ABANDONED
| steamID32: STEAM_0:1:70580077
| steamID64: http://steamcommunity.com/profiles/76561198101425883
| customURL: http://steamcommunity.com/id/kimcamle
| steamrep: http://steamrep.com/profiles/76561198101425883
Hey! DO You have any screenshot of chat? It's required because then we'll know what the original agreement was.