Hi!
A good bit of keys were revoked, because a few users had claimed more than one, not as instructed. They probably didn't read the part explaining the rules.
I have announced another one in my Discord community server (#announcements channel), where I'll give away the copies that were revoked.
If you like, you can join my Discord community, and participate in the giveaway. I host other regular giveaways there every 1-2 weeks. The prizes are mostly my asset packs or bundles, but sometimes other creators send me some keys for their stuff, so I give them away there as well.