Contact
Corrections, questions, bug reports, anything else: this reaches a real person, not a form that goes nowhere.
mdatlas.help@gmail.com
“Open in email app” only works if your browser has a default mail app set up. If nothing happens when you click it, use “Copy email address” and paste it into whatever you actually use: Gmail, Outlook, your phone.
Found a secondary prompt that's wrong or out of date? The submit a prompt form is the fastest way to get it fixed.