The email change option can be used “only” when a customer creates a new account and doesn't make any transactions from it.
Please follow the instructions below to update the email address:
Navigate to ‘update user's email’ in the Admin Panel's Support section. https://admin.ourbus.com/update/email
Click ‘update’ after entering the customer's new and old email addresses.
The customer's new email address would be updated and the old account would be terminated.