I booked seats TG BKK-CDG on the A380 in O class. UA ticketed and confirmed the reservation. I went on Thai's site and it shows the reservation but it only let me assign one seat. The rest of the seat map shows occupied. Does TG block seats? Should I be worried that they will downgrade me? Any advice will be greatly appreciated. I felt like I hit the jackpot with this flight and an LH segment in F FRA-JFK but now I'm nervous about this one.