I know of a company that missed its yearly Microsoft Exchange Online payment. After four month Microsoft cut of their email. Which one could argue is also a "public notice" because emails bounced. (That did the trick and the company paid immediately.)
You are telling me:
1. Microsoft should have tried to find a different way to contact and reach out.
2. That you would have moved your eMail/Groupware to someone else because of that.
You are telling me:
1. Microsoft should have tried to find a different way to contact and reach out.
2. That you would have moved your eMail/Groupware to someone else because of that.
To each their own.