As the discussion is already closed, I'm putting it here.
Just one more thing about those GAs for dubious keys: never put more than 1 copy in such GA, as there are problems with deleting multi-copy GAs. That's what support says about this:

Hey,
To delete whole giveaway you'd need to receive permission from all winners. And they did activate game with keys your provided.
That's why I will forward this ticket to Super Moderator, as they are the only one that can remove one winner from the giveaway. And I need to ask for your patience, as depending on their time, it may take up to few weeks before such ticket is closed.
Winner can mark this one as not received to remove won notification in the meantime. If they explain in giveaway comment why they mark it as not received, then it will be clear for other users that both you and winner agree on it as you await for support action.