Studio Display not listed under "My Devices"

Hi. I have just bought a Studio Display and Mac Studio computer. I paid for "AppleCare+" for both of these. I can see my Mac Studio on "My Devices" along with other devices I own. However my Studio Display is not showing up. I did a quick serial number search and can see it registered with AppleCare.

Is there a way to add the Studio Display to "My Devices", so I can keep tabs on the AppleCare for all my devices.

Thanks

Matt