Originally Posted by
benglim88
1) Because it's a rewards flight they will not allow me to cancel the KL to Singapore leg without cancelling the Singapore to Sydney leg.
2) If they don't show for the KL to Singapore flight, the Singapore to Sydney flight is automatically cancelled.
I'm surprised at this strong reaction on your end. This has been the case for decades on all major carriers regardless of whether paid or reward booking. It's nothing new and would've been in the T&Cs at the time you made the booking.
Of course a multi leg ticket will be cancelled if you don't fly a leg. Case in point: SYDxDXBxLON is cheaper than SYDxDXB. So if you have a round trip and don't do the extra London let you lose the rest of your ticket.
You'd have the same issue with SQ, CX, EK and other reward or paid inventory unless you get fully flex which costs extra.
Don't blame Qantas. Blame the whole industry or yourself for not being aware. This has nothing to do with customer service. If you had paid more for a full fare you could get a refund or amend the booking at no/limited extra charge.