Just an update. IT DID WORK after all - after I had to change my travel dates. It seems despite what QFF told me the DSC offer is/was based on when you booked, on your original PNR. So provided you don't cancel and then rebook a new flight on a new PNR then you're OK, date changes to the ori...

I fell for the promo too, but I was thinking that I could book travel well in advance for September & December and then change the dates nearer the time, if need be. The ticket itself allows changes. But now I know my real dates (in Nov) QFF are saying ANY change means no ...

Do we know if it really means all Qantas operated flights.  So for bookings on Qantas flights originating in the UK or NZ or USA.  Or is it like the Amex cards QF double points offers, so only for bookings made in and originating in Australia and charged in AUD?.