My old service truck is in litigation for the rear diff being scrambled, and a encompitant tech at the dealer, it was purchased at, caused a major charging issue, that has not been fixed. Two alternators and countless hours of labor, to try and fix it, have not been successful. I no longer work for the company that owns the truck, but it sits at his house waiting for a conclusion to the litigation.
My point for this story, is its going to take a long time before any judgement, so good luck, and hope it's a quick resolution.