UPDATE - 1:26 PM
All billing issues have been resolved and the system is working correctly again. Thank you.
We're currently experiencing an issue with our billing processor. You may find that you are not able to pay invoices, update credit card information, update account pricing and options, or add features from The Marketplace in your account. IMPORTANT: There is NO impact on your ability or your customers' ability to schedule and pay for appointments. Please feel free to contact us with questions at firstname.lastname@example.org. Thank you.