Wow… sorry to hear about your loss.
Wish I could give you better news, but very very little chance you’ll get your character back in all it’s former glory.
I lost all my stuff cause of a blizz bug. They told me nupe to restoring any of it. Also declined me a refund cause I played haha. Not playing until I can play knowing I won’t just randomly lose all my hard work.
Here is what blizz told me.