still haven't been informed of new winner

This site has only one choice for picking users. Random selection. It doesn't care for your unapproved rules. You can either give them the game, or have a mark against you for not following site rules.

If you want to do something like this in future, make a Private giveaway, contact support with a request to use the rules you want, and when confirmed as allowed, post the link in the forums.

That is the only way to use special rules in your giveaways.