I don't know the email I signed up to Google My Business
Take these steps to reclaim ownership of your Google My Business profile.
Based on this screenshot, FeedbackClarity is being managed by this email address; Google is only going to show it redacted because of privacy purposes >> ed…@gmail.com
If you no longer have access to the email used for the account, you’ll need to wait for three business days, as Google may allow us to get verified based on their requirements.
1. IVR verification through phone call/SMS:

2. Postcard verification
3. Business video