Take a look at this new class action settlement that is live right now for anyone who purchased an item on sale or through a promotion from GNC.com between Jan. 1, 2012 and Sept. 9, 2019. There is no proof of purchase required to claim what is owed to you. This means you wont need to go digging through old receipts. The deadline for signing up for this settlement is 11/23/19. Claim up to $15 (plus 2 more settlements worth $364+ below) with no proof of purchase.
Some other Class Action Settlements that are still available: