I have the identical issue described in this post:
https://community.quicken.com/discussion/7888791/email-not-updating-in-quicken-profile I have signed out and back in. The email address field in the preferences/profile is an old email address that is different from my quicken ID. Emails related to billing, etc. go to the old email address. There appears to be now way to fix this. Anyone had this issue resolved by Quicken?