YVRMAN here, and I've just completed my annual pilgrimage from YVR to MAN to see MUFC. Return from LHR - YVR booked in Y using Aeroplan basic 30,000 points. Met John, the Concierge at LHR and asked if an eUpgrade was possible (couldn't do it onlne due to new reservation system). Not holding out much hope I went to the gate to board and there was John who confirmed my upgrade to J.
Many thanks John. See you when I'm on my next YVR-MAN pilgrimage.