Unfortunately, the information you’re looking for isn’t here.
These links might help:
Find a registrar: These companies can help your register a .au domain name.
WHOIS lookup: Check if a domain name has been registered and view the public-facing registry data for it.
Policies: A listing of all the rules for the .au country code Top Level Domain.
Domain name help: A growing database of articles about registering and managing your .au domain name
Submit a complaint: If you’ve got a complaint about a .au domain or a registrar.