maybe it was an illegal giveaway

Which games?

http://www.steamgifts.com/forum/ackSa/policy-update-puppy-games/page/31337

This happened to me too and there wasn´t any problem with giveaway

Never had something like that happen to me. Only thing I can see is that the giveaway was deleted. Could you still find it afterward and re-enter?

There was an assassin's creed gold one, a sword and soldiers one.
the giveaways weren't illegal, they were still there.
Just my entry was gone.

So just wanna make sure the admins are aware of this.

Oh well, I guess they'll know it now too