Originally Posted by
SQ319
You can extend your expiring miles for an additional 6 months before they expire for good. If you are an Elite member, the extension would be for 12 months. There is a surcharge of 1,200 miles per 10,000 miles extended, iirc.
Actually much cheaper to extend by paying US$12 rather than 1,200 miles
http://www.singaporeair.com/en_UK/pp...risflyer-fees/