Call bonefish and speak to a manager
8701 W Charleston Bvd in Summerlin~6527 S Las Vegas Bvd
There are 2 locations in Vegas. We went to the one in Summerlin and was 100. Google location
That might depend on how/where the gift card was purchased. If it was purchased from Bonefish (or their parent company) you might get lucky. If the gift card was purchased via 3rd party like a grocery store or from one of those discount restaurant gift card sites or an Entertainment Book then you might not be able to claim that loss.
Find the gift card or the restaurant
Thanks! Your answer is awaiting moderation.