Hello,

When you receive a key for the wrong game, you should mark as "not received", not "received".
Otherwise you'll appear to have a missing win and risk a suspension. A missing win can also be an issue for joining some groups and SGTools-protected giveaways.

If you're happy with receiving another game instead, you can choose to give permission to the creator to delete the giveaway. But you still should mark "not received" (it's not a problem to have that mark to process a deletion later), or at least remove the "received" mark.