Invalid 76561198048533317 ([GT13] Hitsugaya Toushirou)

Victim:
| steamname: Aegises
| steamID32: STEAM_0:0:28358049
| steamID64: http://steamcommunity.com/profiles/76561198016981826
| customURL:
| steamrep: http://steamrep.com/profiles/76561198016981826

Scammer:
| steamname: [GT13] Hitsugaya Toushirou
| steamID32: STEAM_0:1:44133794
| steamID64: http://steamcommunity.com/profiles/76561198048533317
| customURL: http://steamcommunity.com/id/apn_radamanthys
| steamrep: http://steamrep.com/profiles/76561198048533317

Screenshots:


Description: The guy was supposed to trade 2 DoTA 2 keys for my code of Mafia 2. After I gave him the code he just blocked me from Steam. In the picture you can see the chat I had with him and my Steam inventory history which shows that I haven't received anything from him.

Transcript of the chat:

Code:

Code:

26. oktoober 2013. a.
19:17 - Aegises: hey
19:18 - [GT13] Hitsugaya Toushirou: hi
19:17 - Aegises: you wanna buy mafia 2?
19:18 - [GT13] Hitsugaya Toushirou: yes
19:18 - Aegises: 2 keys?
19:18 - [GT13] Hitsugaya Toushirou: yes
19:18 - Aegises: ill sell you
19:19 - Aegises: i have it as a key not a gift but i will give you the key first
19:19 - Aegises: is that ok?
19:20 - You have accepted the trade request from [GT13] Hitsugaya Toushirou.
19:20 - Aegises: show me that you have keys first
19:21 - Aegises: A3E94-LHGVZ-7CCZ3
19:21 - Aegises: worked?
19:22 - [GT13] Hitsugaya Toushirou is now Offline.