Thanks so much for the alert that SQ no longer offer F/suites SIN-AMS > March 2016, which I had booked back in April ‘15. Thanks too for the suggestions for dealing with it, so very helpful and generous.
I wanted to stay in F and was not prepared to accept going into J. So, long story and hours later, I have rerouted via LHR as I needed to get a connection to OSL.
My separate AMS – OSL flight is non-refundable, so I lose that.
SQ rebooked SYD – SIN – LHR – OSL, arriving 1 hour later than originally. Cost was 26K extra SQ points and SGD 120. I have selected 3F all the way - that's a good seat right??
The agent Rudy was knowledgeable, efficient and fixed it up easily over 3 phone calls, not counting the previous approx 2.5 hours, mostly on hold.