Same here but for Sydney base. I am mature guy with only airline experience ranging from customer service to marketing. Also fluent in 2 other languages. Never worked in another field. I also did not get a “completed” or a “thank you” after submitting the questions. I have applied twice before and this seems to be a new format. I was expecting a video interview, never done one, perhaps its the next stage? Interestingly a friend of mine who works for QF did not receive this invitation. Perhaps its externals first or perhaps he did not get to this stage.
Keep me posted how you go. Fingers crossed. This is also something I would like to do. I know the pay is very low but thankfully I am in a position to take a paycut and do something that I actually would get work satisfaction from and not be an office 9-5 job.