Tap on Me (the icon showing a profile) at the bottom of the page on the tab bar and then on the round gear symbol top right hand on the next page. Here you'll get to the Settings. Scroll down to Account Settings. Tap on the email address, overwrite the email in the window popping up and then tap on Save.
Tap on the three little dots on the tab bar at the bottom of the screen and then on the next page on Settings. Scroll down to Account Settings. After that tap on the email address, overwrite the email and confirm the changes by clicking Save.
Should you need any help changing the email address, please contact us directly and we will be happy to help.