There was a problem with people grabbing the game for free and selling the seam keys on kinguin and co. That is why I made it unclaimable for now. However, you really don't need to worry about that. The 100% off sale won't stop until the current situation in the world has finally changed for the better. Since that does seem to still take a while... well I don't assume the game will get out of the 100% free sale before the end of the year really. :D