Originally Posted by
Redbullet
They state "fair market value", but they don't define it. You can reasonably assess safety of a second hand car from a reputable shop and you are also obliged to certify its secure use with official bodies before driving it on public roads, but nobody takes responsibility to assess and certify safety in operation for second hand carbon bikes.
If nobody takes responsibility for this, then do it yourself for your own safety. There are shops that can do it and some that can't. Find one with a good reputation. Pay for the checkup. Get a report. Use it as a support to claim money if needed. A professional opinion is always appreciated during a legal matter.