I got an email that says I have 40 hours to claim it. But when I click on it, it loads the gog store but Postal 2 doesn't appear. Is something missing or hasn't it started yet?

Even searching for it on the store doesn't work. The results show it but when I click on it just loads the main page of the store.

Region locked because Australia.

Possibly someone, not a portal itself but a private person, could gift it to you. Have no spare code, yet can share a list of free games https://www.gog.com/forum/general/the_list_of_demos_on_gogcom/post16
or you already know all of this.
Waves.
⛱️
Btw. Found this https://www.gog.com/en/welcome-offer pretty fascinating (for newcomers)

How can I participate in the giveaway?

There is a banner on the main page. Click "Claim" button.

i can't claim free games

I got a code for postal 2, if you want it. (Seeing as it will likely expire in 2 weeks anyways)