I am watching the card, I even watch the board. Notification is set to "At the time of due date". And I'm not getting it.
Strangely enough I did received them a few days ago. I've just found out today that I've missed the due date for one of the cards because of no notification. So I've created a test one and it does not work. I don't remember changing anything in settings so it seems really strange.
Screen shot of the card