This key cannot be activated in Turkey.

Delete this giveaway and make a new one with the only difference being:
In the "5. Region Restricted" select "YES", click on "Select all", then search for "Turkey" and deselect it.

This way giveaway will be visible to everyone but people from Turkey who cannot activate it.
Otherwise there is a chance winner will not be able to activate your gift, and you will need to bother moderator for a reroll (which is not nice).

It seems that you have EU restricted key. https://steamdb.info/sub/447621/

This has region locks.

Thanks!

hey, thank you very much for the giveaway!