QF have advised that my CX flight, booked using QF points, CNS-HKG has been cancelled. QF is offering me the same CX flight the following day. That does not really suit though if i have to I will live with it. Because of the limited frequency there is no earlier direct flight that suits. Before I speak to them, do I have a leg to stand on asking them to make it CNS-BNE-HKG on QF on the day I originally booked ?