That may be true. Technically under
amazon prime now conditions "someone" needs to be there in person for delivery. I happened to be on my way down from the room to meet the guy (and then get an Uber ride) but he arrived before I got there and bell services accepted it.
If in the future bell services stops accepting prime now deliveries no biggie. They guarantee delivery within a 2 hour window and you get a notification when the courier is out making deliveries