my elderly mother required a wheelchair after a severe ankle injury last year... I took her to the airport and got her to sit at the car drop off point while we went inside to get the wheelchair...

also I can't understand not getting seats in advance. a platinum would get through to qantas in 10 seconds to make the request.

I was initially confused about the routing... going from Brisbane to Melbourne... but I'm guessing that was to minimise any transfer issues at Sydney. but why not fly direct out of Brisbane? I realise the departure from Melbourne has full flat beds... but it takes a good four hours of extra travel to go via melbourne... in regular seats. that's way over half the flight brisbane to to Singapore (on angled beds) already done.

wheelchair changing causing missed flight in London is not good... that should be coordinated.

the downgrade fare compensation on a single sector of a long haul ticket will never be the same as published for the one way sector in question. and the downgrade was a voluntary one. you could have retained business class on a later flight if I read correctly.

having to shout down the aisle to the daughter in economy would be extremely embarrassing. how many rows apart were they? and the crew refused to pass on a message to get the daughter to come forward?

I have sympathy for your wife and pain she is going through - however it seems that part of the distress was caused by poor planning and execution even not getting a wheelchair at the airport before check-in... did that really need to happen?