Do tickets need to be on 014 stock in order to be eligible? The FAQ's only mention that your flight needs to be operated by AC.
Trying to figure out if my flight on AC557 is eligible, but plugging in my PNR into the site says its either invalid or I've made a mistake.
Ticket is on SQ stock, but when the PNR was automagically added to my Aeroplan account when I made the booking so I'm quite sure it's valid.