Crossed 3MM as AC 852 approached LHR yesterday.
YYT Concierge had a small celebration before my departing flight, in-charge mentioned just before landing in YYZ. Concierge waiting for me in YYZ with Porsche service. In-charge gave me a bottle of Champagne just before landing in LHR.
Did you tell or notify anyone at AC at all prior to your travels, or did they proactively figure all that stuff out re: you about to hit 3MM on your TATL?
If proactively done without zero mention from you, then I'm very impressed!
Congratulations!