I have an upcoming flight on SQ826 from SIN-PVG where the First class saver award has been issued. However, recently, on the same flight, the Business class saver award waitlist has been confirmed and have been told to issue the ticket by 17 Jan 2017.

The flight will be on B777-300 and an overnight flight where there will not be much service provided, and possibly sleeper meals. The miles difference between First and Business class saver is 15,000 miles.

Should I just folk up USD15 & save 15K miles to cancel the First class saver and go with the Business Saver or just go ahead with the First class saver award in which ticket has already been issued.

Thanks for any advice!