The bookings for a year out open up for SQ about 250 days in advance. So for a JUL-SEP 2015 booking you will need to be waiting until September to do it all as a single return booking and get the free stopover.
What I have done previously is do the one way booking for July and then when the return dates become available convert it to a return. These days this can be done via the SQ website.
SQ don't always open up the award inventory from day 1. They seem to release/withdraw inventory during the year depending upon commercial demand.
It seems that your schedule and available dates are reasonably constrained. That limits your available travel choices and chances of saver awards. can you consider alternate destinations in europe and taking internal flights.
For you other discussion points it may help for you to check the rules about the 15% 'online' discount and the stopover allowances are covered in the program rules. The rules are your friend.
Have you also considered StarAlliance partner redemption? maybe there are seats available via an *A partner.
Alby
Hey Alby,
Thank you for the information. I was quite flexible when I made the booking back in December but now it seems I don't have much space to move around as the waitlists have or are being closed.
IST is the easiest as I have just over enough Miles (133K) for a J Saver return to IST and then can get a connecting flight from IST or SAW to SKP.
I did try a A* partner hen I made the booking in December but was advised there were no seat available with THY to IST and was assured to stay with SQ as they should free up.
I checked the T&Cs and yes J Savers are only allowed one stopover which I wasn't advised about and no where in the T&Cs does it state that the 15% is void should I happen to have two stopovers.
I'm expecting another call either today or tomorrow so I will see what SQ says - just worried as I have about 15K expiring for the 2nd time between May-July. I think moving forward I should stop using the Westpac SQ Platinum card and only use the Citibank Signature as that way I can collect points without working about expiry.