My giveaway was deleted?

did you specify where you got it? if not. they will just assume. like CoD keys that got leaked. unless yuou specify that you bought it from steam and it's a gift. they will delete it

You should have read all of the rules:

IndieGala Bundles:
Do not submit individual keys from the IndieGala bundles or games from them while they are being sold.

Wait until the IndiaGala sale is over and then make a new giveaway, if your key is NOT from IndieGala.

because it is going on now. so they take a pretty good guess. where did you buy it btw?

if this is true, i guess you can notify the admin that you DIDN'T get it from the gala, and see if they let you resubmit. goodluck dude

I don't really understand this system, i am giving games away for free, for this great community, but then my giveaway gets deleted and i need to prove something? right..

Which do you see from IndieGala? I see exactly two:

http://www.steamgifts.com/giveaway/9xHGT/critical-mass

http://www.steamgifts.com/giveaway/iZyqN/hacker-evolution

(There's a third posted on the forums as a private/referral giveaway, which I'm not linking because it's a private link, even though its a banned giveaway)

I've reported and submitted tickets for all of them, and I probably would've done yours too if I had seen it. You weren't singled out, you were simply found before these folks. As many have already told you, it's far more common that these gifts are single keys from bundles, rather than legitimate tradeable gifts or keys from an alternative site. Think of it this way, would you rather the mods be too thorough (and sometimes delete legitimate giveaways like yours) or not thorough enough (and have the site full of $.11 bundle keys)?

Screenshot receipt email, black out personal details. Only way to sure fire proof