Support - Billing
How do I update my billing information
Only the primary user can update payment information. If your account is not in a trial mode, you will select your account (upper right corner with the user name on the button) and select "Billing."
You can update your credit card infomation there.
Where can I get a copy of a receipt
The primary user's email address will automatically receive a receipt each month. The primary user can also access billing history and view receipts by account (upper right corner with the user name on the button) and select "Billing."