Originally Posted by
pauldb
Even if SYD-SIN, SIN-LHR (or BKK) open up, I don't think the CillaW will be able to change from direct SYD-LHR without cancelling the booking and risking the loss of their outbound.
In one of the changes I made on a similar flight, I was able to change from a direct flight to a stopover flight without the need to rebook. It might all be down to the phone operator you get on the day.