It would be appreciated if you log in with your previous ID and forward your existing email and new email through the left side menu in the app - Customer Support.
1. Existing email address:
2. Email address to change:
Please understand that we are requesting you to log in as your account can only be authenticated if you apply after logging in with your current ID.
※ If you change your Facebook sign-up account to an email type, you only need to pass the email address to be changed.