Sorry to piggyback on your comment, Apocz, but I'm hoping the GA Creator might read this:

Hi, I hope you're well, GemmaBShing?

I think you may need to read the FAQ as I'm under the impression that you don't actually realise exactly how this site works. You've created a Giveaway for these games, meaning you have to give the winner of these Giveaways the game that you've selected. I noticed that H1Z1 isn't in your library, which doesn't necessarily mean a thing, you could buy the game after the Giveaway has ended and gift the winner the games that way. I think you maybe got the fundamentals of this site mixed up and created this giveaway thinking that somebody would send it to you. It's a common mistake and a lot of new users make this error, so it's really nothing to be ashamed of.

I think it would be best for you to read the FAQs about this site here, Clicky Clicky, so you'll know how it works in the future. Like I said, all of this may mean nothing and you might be buying the games once the Giveaway has ended to send to the winners. If this ISN'T the case, then message the staff, explain the error, and mentally ingest as much information about this site as you can through the Support/Help and FAQ section.

I wish you a great day ahead of you and, in case I am wrong about the intentions of this Giveaway, thank you on behalf of SteamGifts for your generosity.

Regards

Phantomta2