Years later my domain for that site was expiring. Google directed me to Google Workspace to renew the domain. BUT... I DO NOT have a Google Workspace account. I did have a google domains account, but it had no connection to the domain in question. It seems like they just sent their blogger doman info over to Google Workspace to manage regardless of if anyone had an account? Maybe, I duno...
In the end I solved the issue by contacting the registrar Google used long ago and they helped me re-new the domain and the emails stopped. All good.
Now Google Workspace is no longer free apparently. I don't care because I don't have a Google Workspace account right?
But now I'm getting emails from google at my gmail address saying I need to add payment information for Workspace Business Starter subscription or ... "after which your subscription will be suspended."
If click the link to get help in the email it sends me to a page to login, that of course doesn't work and it says to sign in with the admin account but of course there isn't one because I never signed up for any of this ... and that's the end of google's "help".
So what are the odds my google account tied to this email gets locked up over all this?
Another possibility is to pay for a different G Suite plan on a new account and escalate this to their support through that.