Payment history for your account can be found through "More" then "Money and Such".
The first tab here is "Payment History". Start by setting the dates you want to see the payments between and click "Update".
All of the payments that have been made from your account now show below. Use the print icon to generate a PDF invoice for the payment.
To update card information or your payment contact information, use the Update Payment Information tab.
To see the current plan your company is billed for, including the number of users and statistics included in your plan, use the "Change your Plan" tab.