Game not recieved, email not sent.

wait 7 days (2 more days) then contact an admin if you still don't get it

It seems that the person hosting the giveaway had emailed every winner.
But I suppose he might have missed you.
Wait up the next 2 days, and try contacting him about it.

Have you tried contacting the giveaway runner? Like those above me said, that person has 7 days to get it to you. It's only been 5. So there's still time. And it'd look better for yourself if you tried to contact the person directly before you complain about them.