Once you enter credit card details in the Billing page, invoices will automatically be issued and sent to your account e-mail and any billing e-mails specified, on the same day each month, for an amount calculated based on the pricing plan you are subscribed to.
The amount may vary from month-to-month, based on the current month's device utilization. A fully-detailed, itemized invoice will automatically become available for download in the Invoices page.
We never handle or store your credit card information directly. All payment details are handled securely by a PCI-compliant vendor, Square, Inc.
For payment methods we can accept, please refer to this article.