Welcome to the forum Capt Benno!
As above #13 The contract you signed states they won't ask for payment until the vehicle has arrived in Australia, no hurry...check your contract. So if they're abiding by their own contract, your vehicle is "somewhere" in Australia.
Did you contact Ineos Australia or go through the Aus. number portal to UK customer service? Ineos Australia logistics know exactly where every vehicle is /estimated ETA. Wait for it to arrive at the dealer.
The Aus. contract states you're not obliged to stump up the hard earned until 2 days prior to handover...It will take a while for the PDI... plenty of time
PS: It appears that some people are playing silly buggers in the Aus. organisation at this end also re. "when and where"...damned if I know why.
PPS: read your contract again also re. where it states the timeline regarding when you are liable for "risk" for the vehicle ...i.e. obtaining a confirmed certificate of insurance...