If your email address has changed you can update your account yourself. Just login go to Account Management (your initials) >> User Info and click the Edit User Info button in the upper right corner. Edit your email address in the email field and click Save User Info.
If you changed your email address, have a new email address, lost access to your old email address or you are unable to login to edit it yourself please contact us and we will be happy to update your account for you.