Am I getting confused again? I would have thought an hour North of Sydney would place her between Woy Woy and Gosford (Newspaper: Central Coast Express Advocate (Wed)
www.expressadvocate.com.au Phone: 4323 5000 Fax: 4323 1968). The East side would be; Kincumber or Bensville.
I still think as you know her ISP and they have her details, a simple phone call could settle the matter. Call your elected representative; tell him/her 70,000 people want answers.
With a Population of only: 20,434,176 you must all know each other!