IMHO, it is unfair to judge them without them looking at the camera first.
There might really be some misunderstanding such as the 3 parts or 5 parts.
A more practical way is to cool down and go to Fuji directly for the repair job.
Highlight to the counter which parts your want to replace.
Once you get the actual quotation, and if you are still not satisfied with the quotation, call them and request a review.
Remember to try to be understanding and talk nicely. I believe they will be more than willing to reduce the price if it is feasible, even if they are to make a loss.
Then everybody, including you and your camera will be happy.
If you already sent the complain to Japan without them checking the camera first, then good luck. Due to the "possible misunderstanding", heads may rolls, service centre may closed, and no one left to service any more cameras. :bigeyes

Just joking)
BTW, just curious, who you spoken to? (Oh, am I also saboing people? :sweat: )