Registrations for private sessions with a Commissioner have now closed. However you can still tell your story to the Royal Commission by sending a written version. Providing what happened to you comes within the Terms of Reference of the Royal Commission your written version will be given to a Commissioner to read, but you will not meet a Commissioner in person.
Written versions can be sent by:
post: GPO Box 5283, Sydney NSW 2001
If you want to check if you have been registered for a private session you can phone the Royal Commission on 1800 099 340.