So does mine but I got the iCloud+ message.
I think you may need to be on iOS15, but do this to check:
If you see these then you are on iCloud+
- Open the Settings app and tap on your name at the top of the page.
- Select iCloud.
- On the list you should now see Hide My Email and Private Relay...
...it must be an iOS 15 thing (strange how my wife received an email about iCloud+ though as she has not updated yet) - I don't see any of those options when I go to my iCloud section in Settings.
I must still be on standard iCloud then (I have a 2Tb Plan)....??!