Bose-X
Is that right? In the Microlight NPPL world you only need an instructor (not examiner) to acquire the 60 minutes time - and then have an examiner (not just an instructor) sign away the "single seat use".
To the OP, - GET YOU RATING PAGE SIGNED NOW!
If you don't before the January date, and this snow and ice doesn't go away, then it is a GST for you!
The single seat use is a "single seat aircraft" as Bose-X says, not "solo" in a two or more seater.
But if you get your licence signed now your SSEA rating will be valid for two years - albeit you may not have access to a single seat aircraft - and then when the snow goes you just do the 60 min with an instructor and track down the examiner for a rating signature.