Car transport issue

Hi all, I arranged to have my car transported from NSW to Adelaide, with the service quoted and invoiced as a 72-hour turnaround. It has now been three weeks, and I still haven’t received my vehicle.

The only communication I’ve had from the vendor is “I’ll update you,” but no actual updates have been provided. They are no longer answering my calls, whereas previously they were responsive. I also cannot get a straight answer about where my car is currently located.

My question is: What steps can I take to recover my car from the transporter, wherever it may be? I know I can go to CBS in Adelaide but that's a long process and I really just want my car ASAP!

I should also mention that the car is insured with Shannon's, I have tried to report it to police but they didn't want to do anything