Add code as a gift

NO!

a code? a code of what? like a coupon? or a cd-key?

No, you have to redeem what you win. If you already have the game, don't enter a giveaway for it.

If you got a key from forum, you can do whatever you want with it, make a giveaway of it or activate it yourself. But if you got the key from a giveaway, you have to activate it in your own account, you can't give it to anyone else.

you are quite lucky
only entered 30 times and won 1 time

Ok, thanks.