I got scammed... now i have a quesion

Who knows if he's lucky maybe by 2020 they will lift the restriction on his account after the chargeback :D.

Anyways, your best option is to contact Steam Bot... I mean support and hope that someone answers you and reads the info you give them. I would consider chargeback as last resort and only if you don't mind your account being restricted, and by that it probably means no trading, no market and not being able to buy games from steam with this account.

I don't think they have ever blocked the whole account for a charge back. From the stories I read, it's usually only a restriction on buying games and using the market, as well as removing the game in question from the library. Usually the restriction is for 9 weeks or so (but that is probably old info, who knows if they increased that info, or if it's tied to how much the game was worth).

please don't spread wrong information. Valve doesn't do "full account blocking" since a few years ago.

instead accounts get restricted, that means access to the library, but you can no longer trade, you can not use the market or the store and you can't activate new games (though I'm not sure about the last one).

unfortunately, I don't find a complete list on the restricted features. maybe someone else's google-fu is better?

also, restrictions can be permanent or they can have a time limit (from a few weeks to a few months).