To establish your credibility in this matter, it would be useful if you provided a summary of your experience and qualifications and, in particular, the basis for your understanding of and familiarity with the legislation establishing CASA and Airservices and the specific responsibilities placed on those organisations and the Australian Government requirements for cost recovery in the aviation world.
Same goes for for you, I will not, for a number of reasons.
PM your email address to me and we'll go from there.