I know this answer is super late. But here are or were two suggestions.
1. If you lost it at the convention there is a chance you might find it at lost and found.
2. There have been cases you would get a temp badge if you have proof of purchase.
1. If you lost it at the convention there is a chance you might find it at lost and found.
2. There have been cases you would get a temp badge if you have proof of purchase.