Xoom Help Center
Why do I receive a message that my payment source is already in use?
- Log into to your original Xoom account. If you created a new account because you no longer use or do not prefer your old email address, please enter this email address along with your original Xoom password.
- When you are logged in to your original account, click on "My Account," in the upper right-hand corner. Click on "Email Addresses” under Account Services.
- Here you can change your email address to your current address.