Azworai: So, I have a free copy of Witcher that I can only gift as I already own a copy. I want to gift this to a friend, but when I get to the checkout to send to my friend, the purchase option does not become possible to click. I'd really like to gift this to my friend, who has never touched the series yet. Help please?
Have you tried leaving the gift code email and comment fields empty and then checking out. I say this because during the GOG Fall Sall I received a free game that was sent to me via game code that was emailed to me.
If you try what I suggest and it works, you should receive a game code in you email from GOG that you can send to your friend. Your friend can then enter the gift code on GOG to have the gamed added to his GOG account.
EDIT: Is the game you are trying to gift titled "WITCHER" or "WITCHER: ENHANCED EDITION, THE". I do not see a game on GOG with the title of "WITCHER". I just want to make sure we are talking about the same game.
EDIT: Is it possible that the gift code expired.
EDIT: If you try to gift it directly to your friend, make sure the friend's email address you enter is the email address your friend used to register with GOG. (If you do not know your email address, this would be a good option)