Cannot Unsubscribe from SFDC Trust Status Text Notifications

Is there any way to unsubscribe from Status Text messages (via status.salesforce.com) when access to the email on the account has been lost?

Recently finished a project for a client where I had Org Status text notifications setup using my phone number. This was initially setup using the email provided by the client, which was a government entity. Since off-boarding, several of my team members now cannot unsubscribe from these notifications since the emails are no longer accessible and have been decommissioned entirely. Even if they were reactivated, these emails cannot be accessed without government issued equipment, VPN, and PIV card (all of which have been returned).

The only way to manage subscriptions for the Status website (status.salesforce.com) is to enter the email used when it was initially set up. But now since me and some of my colleagues cannot access the email we initially subscribed with, we receive frequent status updates about orgs that we no longer support. Further, we cannot add our phone number to any new account since it is already associated with the previous account.

If subscribing to Status text notifications for different orgs is desired for anyone in this situation, an entirely new phone number needs to be used which is not a great solution. It would be useful if there were either a way to open a ticket on status.salesforce.com for support, or have the option of logging in by receiving an authorization code for the phone number on the account. That would allow us to remove the phone number and migrate it to a new account using a personal email.