IIRC, you haven't had that bike very long.
Wouldn't they have something like "free replacement" in the first year?
I can understand paying labor if my frame was 20 years old!
NOT if it's "relatively new".
The FRAME is the "soul" of the bike. The rest of the bike is just the parts that are installed on it!
IMO, TREK should "make you whole" at THEIR expense.