I have tried my CX 6 letter booking reference with both checkmytrip.com and viewtrip.com, and neither of them will show a booking for my upcoming CX trips!

Am I doing something wrong here? Checkmytrip.com has worked in the past for my QF flights. I really only want it to check other pax seating- to make sure that there is no-one sitting next to me

Is there another site I should use to try and view CX bookings?