Originally Posted by alfrie

I suggest you add the trip to 'CheckMyTrip' App. Then tap SIN-HKT segment to check if there is a ticket number? does it match the latest number that AS reissued? Since AS claimed it was issued properly, can you just give the 027 number to SQ and ask them to attach it to that segment? At least SQ should be able to see what's on that ticket thru GDS.