Hi bouiboui thanks for support me :D. The keys will be soon, I have to ask Valve to generate the keys, sometimes it takes some hours, sometimes several days... Unfortunately, games are my hobby (I have a normal job) and I can't check it often. It is a pity that there is no notification E.g. 5 keys left or no "keys for Shop Tycoon", etc.
PS. I found one key on my disk, maybe You can send me message airempl@gmail.com? :D If not please wait 2-3 days. Also I will later update Itch version.