Originally Posted by
Often1
OP - You are entitled to a refund of the fare difference, e.g. miles for the DG. You are then being charged for a change which has nothing to do with the DG.
I agree the charge for changing the date which is 1K miles/USD25 but CX is charging 10K miles or USD100 for reissue ticket which I was forced to pay due to no PY available on my requested flight. Anyway, if you look at the redemption avilability chart of HKG/TYO, quite often they offer PY only on higher demand dates. But not all HKG/TYO flights operate with PY, or I should say many regional flights do no operate with PY. Unless you have fixed the travel date, otherwise, do consider to redeem J to avoid the problem I experienced.