checked the 3 of us into YYZ Intl MLL this morning before our flight to Mexico.
Agent asked what about the 4th passenger on your PNR?
Umm, no. There are 3 of us split on 2 PNRs (2-aeroplan, 1-paid).
Agent insists the 3 of us plus another member with a totally different name are on the same PNR. Proceeds to half-show me the screen. The 4th passenger is from Germany, with a very different last name. They are originated from Munich, connecting to our same destination in Mexico.