I have little sympathy for you. If the keys don't work, then why did you buy the DLC?
And you did mention one or two games that work. So it's obvious he had no intention to scam you. And bear in mind, HE WENT FIRST DESPITE ZERO REP ON YOUR PROFILE.
From what I see here. He lost a game and got nothing in return. So who is the scammer?
Logically he had the intent to send the DLC over had all the keys worked. Just put yourself in his shoes. Would you still send over the DLC if you got only 2 games out of the 4 games offered?
Here's 10k for your car. Sorry 5k was counterfeit, but that's not my problem. It is your problem, you're not taking my car.
Man, Zentrino is perfect trader. But its bad behavior to leave friends leave you bad rep too, I agree.
And if its truth that you are saying that they were INVALID, that shit happened to me too.
With one guy, when i gave him some keys, all were invalid for him, When i tried on my acc, it was dupe.
I even tried to use teamviewer to activate them, but nothing worked.
30 Minutes later the guy contacted me the key worked.
So I was trading with a guy earlier and bought him a DLC. He then gave me the keys that he offered, None of which worked. Now he is proceeding to spam my profile with negative rep. Please help.
Read this also: http://forums.steamrep.com/threads/i-am-a-good-trader.9695/