Upgrading from "J" to "A", is it possible?
J2RTCX CX J Round-Trip 56500 (HKD)
A2RTCX CX A Round-Trip 58730 (HKD)
I have a rtn ticket to LHR which my company issued through a travel agent, booked in full fare J, can I call up CX ticketing, give them the ticket number and pay the extra HK$2,730 for First Class in A?