Winner specicfied wrong e-mail

pick a new winner :P

You have 7 days to provide the gift. You have to wait.

Read the FAQ, the giveaway just ended 1 hour ago. There are people that aren't 24/7 online and which live in other timezones.

Have patience!

ended 1 hour ago... You know these things, called timezones?!
After 7 days without any reaction you should contact support.

Some people (myself included) don't have their "steam email" associated with SG..
So I fail to see your problem. Or, rather, I fail to see how you can say that he specified a wrong email.
Also, as others have pointed out, just wait.