Open account settings in the app and edit the email there. Sign-in codes go to the new address from then on.
If you no longer have access to the old address, message us from the app and we will verify you another way.
Added Sep 6

Changing your email, deleting your account, exporting data and languages.
No answer for that yet.
Sent. The team replies in the support chat in the app.
Due to high volume we may not be able to reply to every message.
Fastest
Members have a real-time chat with the team inside the app. Open Support from your profile and send a message; replies land in the same thread.
Open the appScreenshots and suggestions
Screenshots, screen recordings and feature suggestions are best by email, so nothing gets lost in a chat.
Write to supportDue to high volume we may not be able to reply to every message.