.

I think it probably depends on what the game bundle is. If it was a deluxe edition where you already own the base game, but the DLCs are actually just a soundtrack and some useless cosmetic stuff, I'd imagine that can be rerolled without the winner's permission. I think it's at their discretion whether they want to give a game where you already own part of a bundle.

Check in the FAQ, pretty sure there is something about that in there.

EDIT: Found it... "We ask users not to enter giveaways for packages if they already own the majority of the games. This allows for winners that will receive the most value out of their gift. In the end, the giveaway creator has the final say, and if they believe the winner owns too many of the packaged games, we'll allow them to request a new winner."

It does not seem right to me that a giveaway creator can randomly ask for and receive a reroll without the consent of the giveaway winner.

you owned part of the bundle you won, so the ga creator rerolled following the rules in the faq.

What are the rules for entering to win Steam packs if I currently own a number of the games contained within?
.
We ask users not to enter giveaways for packages if they already own the majority of the games. This allows for winners that will receive the most value out of their gift. In the end, the giveaway creator has the final say, and if they believe the winner owns too many of the packaged games, we'll allow them to request a new winner.

them rerolling after contacting you was dumb, but the ga creator isn't breaking any rules. 🤷

Reroll reason was "majority of bundle exists in their account".. stupid that the creator contacted you, but absolutely legit to request a reroll.
If you own the base game in a bundle pack it counts as majority. sry

The giveaway creator can request a reroll at any time as long as you own at least one part of the bundle, no matter how minor that part is, whether he's tried to contact you before or given you any guarantees. He has the final say no matter what. It seems like he chose to resolve things in a strange manner, but the reroll is still valid in accordance with site rules.

I did write that rules written in FAQ and guidelines may look "different". That's why in proposed guidelines it will be changed.

From:

Try to refrain from entering giveaways for packs if you already own the majority of the games contained within. The giveaway creator may request a new winner if you own a high percentage of the packaged games.

To:

Try to refrain from entering giveaways for packages if you already own the majority of the games contained within. The giveaway creator may request a new winner if they believe you own too many of the packaged games.

So after new guidelines is up, there will be no "problem" of guidelines "winner owns majority of package" vs FAQs "creator believe how much is too much".

It is creator that has final say. No matter for number of items, their value etc. You may own only base game of Saint's Row 3 and if creator decides it's too much when they give away Saints Row Ultimate Franchise Pack - we will approve re-roll.