the Independant Industry Complaints Comissioner
That is an oxymoron.
The CASA paid "independant" complaints commissioner was set up as a hurdle you had to overcome to say you had "exhausted all other avenues" of redress before you could make a complaint to the Commonwealth Ombudsman.
CASA are not particularly interested in air safety, their preference is enforcement.
This is probably the most accurate statement ever made about this organisation. If you don't believe it to be true, you probably work for them, so are biased in your opinion, or under their umberella of protection.