Then you should delete this giveaway.

Giveaways should accurately reflect the game being given away. If the game is not available in the giveaway list, please contact support to have the game added, instead of posting the giveaway under an incorrect name.

You are not allowed to reroll because you dont have the game. If its really just the gold edition then wait 7 days mark this giveaway and not received and report him. He also had 3 days to delete this giveaway. I would neither give the permission to delete this giveaway.