This page will allow you to make changes to your First or Last name. It also allows you to change the registered email address[1] for the Online Bill Payment system.
You may also change or add a Mobile Phone number which may be used in the future for text messages. [2]
[1] Once the username has been changed you will not be able to login to the system with the old username, email address.
[2] Text messaging is not available at this time.