Possible scam
I received an email stating a "problem with my account and card and that you could not charge my account".
When I went to check which card I had on file for you and checked the card there are no obvious issues and the card was charged $2.99 for my iCloud storage.
The email also indicated "If you don't immediately update your billing information, your Apple ID will be permanently locked."
I wanted to make sure my account is okay and make Apple aware of the scam.
MacBook Air 13", macOS 10.14