QF would most likely need to issue an apology for the advertising mistake, but unless they actually offer the fares and accept payment of only $75 they are under no real obligation to honour what is obviously a printing mistake.
Not sure if you mean that in the strict sense. Is that how consumer law works (genuine question)?
AFF Supporters can remove this and all advertisements
Yep, it's the customer that actually makes the 'offer' in the sales contract. The ad is simply Qantas' 'invitation to treat'.Well I'll start with I am not a lawyer, but I have spoken to lawyers in the past when running my own business (this is where I got a lot of my knowledge about inclusive pricing laws as well). Basically you did not need to honour genuine mistakes like typos in advertisements, provided you draw attention to the fact that it was a typo (and it didn't happen too often) and offered an apology. Things got a little more murky once a contract was accepted, in other words if an airfare was booked at the very reduced rate it's not as clear cut as to what can happen.
This is why sometimes out the front of places like K-mart and wollies they have A4 notices offering apologies for catalogue mistakes, if they didn't offer the apology then they could be done for bait and switch.