I guess you never read the warranty?
"All potentially defective products must receive a Return Goods Authorization (RGA) # before they are returned to Taylor Made Products. ... Freight on defective products is the responsibility of the consumer...Repaired or replacement products will be shipped back to the consumer freight prepaid."
They say they'll fix things--they don't say they'll send out repair parts
. You might try to speak to a manager and explain that shipping
three fenders might cost you $100? out of pocket, AND IT WILL COST THEM just as much to ship the new ones back to you. SO shipping
you some parts would be much more reasonable. (Although, thinking about the way valves are heat fused into fenders, I can't see that there's anything you could repair unless you had a vinyl factory.)
If they intend to just replace the fenders, and they have any authorized distribution in Oz, the best solution might be to just have a dealer swap them out, since the old one would probably just he thrown away in any case.