To do this, log into your current Billetto account and then click on your account name in the top right hand corner of the screen. From here click on the orange 'Edit' button that can be found beneath your banner profile picture (again on the right). You will be taken to the Personal Information screen where you can choose a new email address. You will need to confirm this change by entering your password.
Note: If an account already exists with the email address you are attempting to change to, an error message will be generated and your attempted change will be unsuccessful.