Won a game and Steam says not available in my country

I heard it can be activated if you use VPN or something, but it's not legal I think, so I can suggest you to inform giveaway creator and ask for a reroll

You need to contact the giveaway host. If they can not give you a replacement key, you can agree to have them delete the giveaway (in which case they'll have to open a ticket and you'll have to confirm in the giveaway that you agree), or mark it as not received.
Please be patient and give the giveaway host a couple days to find a solution, don't rush it, but I understand the frustration. :/

Let me guess, saints row? Or any other game from humble bindle? Same happened, if the creator of your giveaway is not a complete ass hole he will try to resolve this, u can ask for its deletion on giveaway comments so its faster for to you enter on another giveaway of same game

Hello fnguen.

The first thing you should always do is communicate with the GA creator and let them know by leaving a comment on the giveaway. See if they can provide you with working key that isn't region locked. If they can't then you can either mark the giveaway as not received(you have to wait 7 days to do this) or if the GA creator asks you to delete it, you have the option to agreeing or not agreeing. You are not obligated to delete it, so the choice is yours. The giveaway creator should always ask and not make the winner feel like they have to. When it comes to region locks we can't reroll to a new winner, so this isn't an option.

When it comes to any games with region locks the giveaway creator should always use the region lock tags that SG provides when creating the giveaway, provided they knew there were region locks. It's not always as cut and dry though as storefronts don't always provide accurate information concerning those. There's bundle threads posted on SG that are worth checking out as they will often provide details on region locks.

Do I just comment on the game again, or how do I contact the host themselves? Not had to do this before. Thanks for the speedy replies. Not exactly what I was hoping to hear, but it is not the end of the world.

Okay. I've requested a key that is not region locked, or a request to delete the giveaway.