The Billing section gives you access to your previous and current Zentail invoices as well as the ability to update your credit card information. You can view the month, amount, and status of each invoice. You can also go directly to the billing portal from this section. Please contact your Account Admin if you believe you should have access to this section.
Update billing information
You now have the ability to update your credit card information directly in Zentail.
Go to Account Settings -> Billing -> Update Credit Card