VH-TFY was heard to be using the flight number and callsign of 'HND835' / "Hinterland 835" for both flights.
Meanwhile, also on Sunday 8 November, the locally-based Greensill Aviation Cessna 550 Citation Bravo bizjet VH-CCJ was noted departing Bundaberg Airport for Brisbane. It returned to Bundy around sunset but has since departed again and headed to Adelaide.
UPDATE! On Thursday 19 November, VH-CCJ finally returned to Bundaberg Airport from Adelaide.
Photo taken by Ryan Hothersall ©