I haven't got the logs from the first three messages below, but I wrote the most content of the original messages as good as possible down.

??:?? - Treazer: Hey, you won my giveaway, but I had to reroll, because you already own the game. Please don't enter giveaways with a game you have already redeemed.
??:?? - [Winner]: Gain 2 games the same day
??:?? - [Winner]: Don't drawing if not want to give
14:40 - Treazer: What are you trying to say? Did you get both games the same day (by entering several giveaways)? Or do you want to say that you shouldn't do a giveaway if you don't want to give the game? If it's the last one, yes, of course, I know that, but I want to give the game. You don't meet the criteria, though. You mustn (note: accidentally hit the enter key^^)
14:41 - Treazer: You mustn't own the game and you have to redeem the game you got to your account, which is impossible, because you already own it.
16:12 - [Winner]: fuck you,
16:13 - [Winner]: suck me
16:13 - Treazer: What's your problem?
16:14 - Treazer: You broke the rules, I didn't.
16:17 - [Winner] ist Offline.