Here are a few additional email addresses that may be useful for contacting staff at Jetstar, Qantas and U.S. DOT (for complaints relating to flights to/from Honolulu):
1) Top Jetstar Customer Care Staff: email@example.com
2) Jetstar CEO: firstname.lastname@example.org
3) Qantas Chief Customer Officer: email@example.com Note the absence of a period (.) between first and last name.
4) Qantas CEO: firstname.lastname@example.org Note the absence of a period (.) between first and last name.
5) U.S. DOT email for airline complaints: email@example.com
I hope you find these useful / effective. Cheers!