I did not get free game star crawler after buying new titan quest expansion... but I did received an email I can't find in my spam folder or under any tab... I use outlook...

I'd say (other than it being your laptop :o) that the odds are heavily in favour of it being a bug at GOG's end. Every announcement they make or release is bugged out of existance. I would leave it for a few hours (as there could be lots of people buying) or even until tomorrow, then contact support.

Have you tried checking if the game shows up under Orders & Settings? If it does you should also be able to find the key there.

On gog page? No, it does not... sadly...

Still no code...

If it doesn't arrive tomorrow, contact Gog's support.

I got mine pretty quickly so you should probably contact support...

Does Outlook have a separate 'junk' folder? If so, check there as well. Also, see if there's a setting as to how long an e-mail sits in your spam/junk folder before it's automatically deleted (or if it's deleted when you close the client). This may be what happened.

Likely you'll need to contact GOG Support though and see if they'll send the code again or add the game to your library automatically.

On a side note, I bought a couple games that put me over the threshold and got Starcrawlers right away, so there shouldn't be an issue.

I got spam and deleted folder: none of them have this email... in my spam folder I got email that sits there for days - just one email, a twitter one...
It's possibility I mix this email for one or two emails I got around the same time - email for mdk i email for puchase..