To update/change credit card information, simply go to www.cfdynamics.com. Enter your username and password in the member's log-in section.. (If for any reason you no longer have a copy of the username and password, please contact us, and we can e-mail a copy to you.)
Upon entering this information, please click on 'change your account information.' You will then be able to change this information and submit it to us. Upon submission changes/updates will be made to your account information.