So, I created a Dead Island giveaway before I knew it was locked...what now?

be a man and take the blame, that's why you don't rush with things.

To delete the giveaway, or buy the game for the winner, or deal with not received.

option 1: delete giveaway

buy the game and gift it to the winner

Delete

Lots of people have deleted giveaways. Even the SG staff do. Shit happens.

Now delete it. Or buy a region-free key/gift instead.

looks like your problem was solved for you

DWI

Who said it was region locked? It isn't.

Edit: Hrmm, ROW maybe means Rest Of the World except Poland and UK?

shame

They are looking into Region Locked keys, so they will be changed.

Don't worry, delete it. You don't have a "huge" cred as you say. Shit happens, and is even worse if you start your OP with:
"So, I created a Dead Island giveaway when I first found out about the Raptr reward". Giving away things that you get for free is not a good way of building credibility here. ;)