Originally Posted by Eiddetham

I was wondering if anyone could interpret the following:

My flight is in 3 days (SQ23 JFK to SIN), but not quite in the 72 hour window since it is a night flight, so more like 82 hours away. I checked mySQupgrade just in case, and I got the usual "Upgrade is not available at the moment. Availability is checked in real-time and upgrade may be available again. Please try again later, from 72 hrs till 6 hrs before flight departure." All standard and expected given I'm not in the 72 hour window.

However, I checked expert flyer last night, and like 17 Business seats were still unoccupied. Checked it again just now, and now most of those seats, except for maybe 4, are listed as "Blocked". Anyone have any idea on what blocked means in this case?