I did not receive Gift

Wait 7 days, mark as not received.

report it. and 2 threads.

I do not know where it's done

After 7 days mark as not received and go forward with your life. Nothing more you need to do. Well, maybe check mail for spam, it might hide there.

And delete second thread you've made.

already passed 8 days

mark as not received.
Try to contact the creator yourself

how to contact him. I do not see the email and it does not go through Steam

Make a support ticket :-)

Thank you for the quick reply

You can get to his steam profile from his steamgifts profile. There's a link, try to add him. I'd post a link, but I don't want it to be mistaken for calling out...