There was a time when people in car dealership spares departments knew what they were doing and could talk on technical and engineering matters, but it seems now that they are just clerks who book parts and cars in and out, and dealers keep no stock of anything except oil filters (one size fits pretty much every Honda anyway) - not even drive belts are kept.
You have a while to go yet, a few years ago I read about a guy who had to wait 6 months for a part for his Chrysler Grand Voyager, even a year ago my boss had to wait for a part for his Mazda CX-5 for best part of 10 weeks, so hang on in there Tiger, at least you are wearing their courtesy car out instead of your Jazz.