Had these group of scammers call me on my personal number, managed to keep them on for 2 and a half hours, and they are calling tomorrow to follow up.
Claiming they are from Services Australia, but they also spoofed the local police number (which I provided to them) when the police called repeating the same information as the previous person.
Basically tfn has fraudulent activities, stolen identity, etc. They talk so much, they wasted their own time. Minimal baiting effort 
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I got bank account details, but apparently little can be done without a date of birth of the account holder. If anyone knows anything about reporting Australian accounts, let me know.
They gave me the following number to call back on 0480014607 if you want to mess with these gullible scammers.