Sorry to hear about your lost gear.
I also lost all of my stuff due to a bug on blizzards side…
Contacted them and they said nupe nupe nupe. They take Zero responsibility for their actions.
Sorry to say, but your stuff is just gone gone.
You can start over knowing this could happen again at any time (also people lose tons of single items as well as full characters due to bugs).
Or just not play until it’s fixed. That’s what I’m doing till ladder S1.