First, I want to extend compassion because it sounds incredibly frustrating. Also, I’ve been in a similar situation and have too learned to only trade in store. I hope it ends up working out well for you.I traded in my wife’s 12 mini and that came back without issue and the full value. I know I treat my phone better than my wife!
But second, I want to offer this as a hopefully humorous distraction. An excerpt from your post is above; it seems that you might have been suggesting that you treat your phone better than your wife treats her phone. Grammatically, it's ambiguous, at best, because it reads as you treat your phone better than you treat your wife. I want to think that you intended the former meaning and that in your legitimate plea for compassion you did not just announce to the world that you treat your phone better than you treat your wife.