Yes, Bigglesworth was one of the servers that got consolidated. A lot of servers got shut down due to very low population and all characters on those realms should have been moved to Sulfuras, as that was the designated server for characters on that realm to be moved to. You can find more information on the realm consolidation by going here:
However, I’m certain I also have a few characters across various realms that didn’t get moved and instead got deleted. idk if they auto deleted characters or something that either way, a ticket is the only way to sort this.