Preregistration credit card payment won't process
If you are having trouble processing your credit card during the preregistration process you should make sure that your Chrome browser is setup to enable third-party cookies.
1. Open Chrome preferences, click on Settings, then Show Advanced Settings.
2. Under Privacy, click on Content Settings.
3. Make sure "Block third-party cookies and site data" is not checked
Once that is enabled you should be to enter your credit card and pay for the registration.