Interesting, I don’t remember ever getting an Apple Care email on any of my devices over the years. I’m sure I did, just don’t remember. The email isn’t necessary. Apple has all that info connected to your device. If by chance you don’t see an email a fast chat, call or DM to Apple Support on tweeter can get you a confirmation. I also think there’s a way to check the Apple care status online. Maybe another member know which site to go to.