Assuming you have freeShop set to use the title key site everyone else uses; that website relies on users uploading the title keys by hand. It doesn't do anything by itself, someone who owns the game has to upload the title key. I think there's also some cache thing that may need updating too, if the game is on the title key site but not freeShop then that's the case I guess. If that was the case and you cared, you could get the title keys from the site and work something out. Otherwise, you'll have to wait for someone to dump the keys for the game you want.