Edit your Plans and Billing information.
First click on "Manage Organization".
Being on the "Manage Organization" view. On the left side of the screen, click on "Plans and Billing".
Here you would find the "Billing Information" with the details that need to be filled in or edited.
After filling in the mandatory fields and making sure all the information is right, scroll down and click "Save".
Now your next bills will include this updated information.
On the "Plans and Billing" view, you can also edit the card details that you want to be charged with. You just have to click on "Update Card Details".
Here you should enter the Cardholder's name and Card details. After making sure the information is correct, click on "Update Card Details".