Ausian,
refer to the PM I sent. Long story short - unless it's an offical Suzuki Australia model, they have no requirement to have or source parts for you.
I've spoken to a number of country dealers (not just Suzuki) over the years and they all say the same thing "if you buy a grey import, don't even think about bringing it here for anything other than a basic service".
If you live in Melb, Syd or Bris you should be right, because that's where the importers generally live.