Most importantly, DO NOT simply not appear for the outbound flight. In the event that you do, that flight and all ensuing flights will be dropped.
The alternatives accessible to you rely upon the admission rules. I would call Singapore Airlines and request a manager. The individual you get will presumably not be an administrator, however a senior operator. They ought to have the option to isolate the PNR with the goal that the one you have to change is broken out as a different record.
This way changes can be made to that record without influencing the other passengers.Be sure to be succinct and neighborly. Have all the data close by with regards to your new timetable and some other choices you would acknowledge.
On the off chance that they exhort you that changes can not be made, you should seriously mull over asking them what choices are accessible to you dependent on the admission rules. Toll rules can be exceptionally intricate and cover a bunch of conditions, particularly with regards to International travel.
You also contact Singapore airlines manage booking for any related issue you airlines booking, PNR status or cancellation.
See more links:
Philippine airlines manage booking