Your link doesn't work and you still haven't even told us what the problem is. How can you be taken seriously if you don't even show evidence?

As far as wrong parts being shipped goes, the liklihood of mistakes increases exponentially the more years a vehicle is made. As long as the Z cars have been around and with the who knows how many line changes that were surely made on it that would change the part numbers. Did you ever consider that there could be 12 different part numbers for a certain item for 3 years of production?

That said, I still think you're full of it.