Originally Posted by CSP18

I have booked a flight with CI from Europe to SIN via TPE. The first leg is in PE, the second in Y. Now, CI has changed the aircraft for the second flight from an A333 to an A359 with PE seats. As far as I can tell, CI does not sell PE on the flight, only Y and J. When I first looked at the new seatmap, it was possible to buy the PE seats as premium seats for a very reasonable price, and there was not a single occupied seat. Now, a couple of weeks later, all PE seats are blocked. I am slightly puzzled because PE is still not sold as separate cabin. It just seems that the seats are not available for sale, period. Does anyone know what could be going on here?