I'm flying out next Saturday, just checked the flight status on both Aeroplan and AirCanada; the TK and SQ flights are not even showing up in the online itineraries anymore. Its just an open jaw from BKK to LHR
A few weeks ago, I selected my seats on TK website, now my TK booking reference given by Aeroplan doesn't show anything on their website. SQ website just says that this booking was not made on SQ, so contact the airline that booked the ticket
Will contact AP tomorrow, hoping that this is just a TK/SQ website glitch.