Qantas passengers booked onto all domestic and international flights departing until May 31 2020 now have the option of cancelling their trip for any reason, even when booked on an inflexible fare.
While cash refunds are not being provided unless permitted under normal fare rules, passengers will be able to retain the full value of their booking as a credit voucher which can be used towards the purchase of a future trip, with any normal change fees also waived.
This applies to both existing bookings, and new bookings made by March 31 2020.
https://www.executivetraveller.com/news/cancel-all-qantas-domestic-international-flights-for-free