I have booked 2 tix from JFK to BKK via Sin on SIA's website. I did this to save the 15% mileage from regular rates.
Got the seats and selected out seats on line last week.
Today I looked and I now appear to have 2 x SQ 25 on same day but an hour apart and 2 returns on SQ 26 but a few minutes apart.
The problem is that I have NO pre reserved seats on the new flights and can't select them online as it is obviously a duplicate!! I like the seats we have already and have no idea if they will still be there when this mess is sorted out online and turned into 1 flight again.

HELP