Log into your account and click on your profile icon at the top right corner, then select “Account Details & Settings”.
You will see your email, which you can select to make any necessary changes, such as updating or editing, by following the steps provided in the app.
If you can't login with your previous email, click on "Create Account" and re-register with your new email.
Please note you still need to contact your practice so they also update your email in their system.