You can easily change any information in your account by logging into your account in the client area https://tserverhq.com/clients/clientarea.php?action=details From this, you can change your information such as contact email, billing address, ect.
Keep in mind that we require you to have FULL and LEGAL information in the contact area. We are notified of all changes and anything that is not the real and legal information of the account owner you will be required to change them back. We do this for your safety.