Thanks for the clarification leafo.
Some people have said mt game isn't claimable even though I haven't set it to not be (the box is ticked in the sale I set up), is there anywhere else I need to check? I did extend the sale so I don't know if it being a longer giveaway makes any difference?
Also my understanding is that if you do a giveaway, if you later opt to release on Steam and add the keys to the system, only people who have actually bought the game will have access to a key, not everyone who got it on a free offer. Is that correct? What about people who make a donation when they get it from a free offer?