To update your personal information, including email address, password and billing information/credit card, please make sure you're logged in to your account and then select "Account" in the right, upper-hand corner.
In the "My Account" pop-up, you can select the "Edit" option as needed.
*If the "Billing Information" "Edit" icon is greyed out, it means we have no billing information on file. This likely means you subscribed to C&B VIP through your app store.