Here's how to change it on each platform.
Web
Tap the Settings icon in the bottom-left menu, then select My Info from the Account Settings menu.
Under the Username section, tap Change Username.
In the pop-up, you'll see your current username displayed for reference. Enter your new email address.
Enter your current password to confirm the change.
Tap Save.
Mobile
Tap the menu icon in the top-left corner of the Home screen, then select My Info.
Under the Security section, tap the refresh icon next to User name.
In the New User Name screen, your current email is shown partially masked for reference.
Enter your new email address.
Enter your current password to confirm.
Tap Change.
If you need any further help, don't hesitate to contact our support via in-app/on-site chat.
