I have a problem redeeming The Witcher 2 code i got frrom stamps
"Code already used"

Contact support - http://www.gog.com/support/contact

HEEEELP guyz im having all 7 stamps (Witcher 2) and i dont have receved my code will i get it later or is it something wrong

I have the same problem, i collected 7 stamps and so far no email with the code :( what now?

GOG will send it via email, but it may take a bit as a lot of people have all the stamps now. Just be patient. Have you actually tried to redeem it? Maybe it's just not added to your shelf yet.
Refresh your account by clicking this link while you're logged in:
https://www.gog.com/account/refresh

Do they provide serial as well..or we just download game?

You'll get a key for the digital version here on GOG.
Redeem it here: https://www.gog.com/redeem
and the game will be added to your library.

i clicked on the redeem link in the e-mail i received but on the redeem code page i got that message.

If the message was the first thing you got when clicking on the email link then something is wrong. Either someone else used the key in your email, which is possible, or it's a simple glitch with the code. I'd contact support to clarify this: http://www.gog.com/support/contact/my_orders_and_payments
I'm sure they'll sort this out for you.

Thank You

its been about 9 hours since i collected 7 stamps and still no E-mail, is it normal has anyone waited so long?

Problem solved.
Thank you :)

Solution:
The codes are inverted: The Witcher 2 code is for the The Gamers and vice versa.

I tried to give my code away and it' did not work. I had some not so positive experience with Witcher: The Adventure Game beta key so I checked if code was working. It was, so I posted it - but no luck. It is impossible to redeem it and shown status is "Temporarily locked". Anybody knows what's going on?

That's normal. When you try to redeem a key at GOG's redeem site, it gets temporarily locked for other users. Once you close the redeem site, it takes several minutes for the key to unlock again. This way GOG prevents trouble with several users trying to redeem the same key simultaneously.

It's seems that situation is resolved - key is now shown as used- but I got no feedback, so I'm not sure if this is not some kind of glitch.
I guess I will have to live with such uncertainty.