In recent days, QF pilots have been questioning ATC regarding faulty or non-response radio frequencies.
EG:
NOTAM YPAD
Adelaide Clearance 126.1 not available due to Tower Maintenance, contact Ground on 121.7 for clearance.
QF crew “Ground no joy on 126.1”
I know, small and trivial, but given the chance
VB or REX crew would be hammered for doing such things.