Way to contact someone of the site?

Hmm... You need to add him to send him a gift?

yes its in my gift inventory :/ or do i not need to add him O_O cause this is only my 2nd giveaway

There is support button at the top of the page.

Edit: And gifts in inventory can also be sent through e-mail.

if has created a giveaway or made a comment on your giveaway, you can reply there so he will get a notification.
i would make screenshots from your friend-request and email and ask after the 7 days for a reroll...

You can try to post a message in one of giveaways created by him, otherwise wait 7 days and reroll.

Okay thanks guy :D