For customers paying by credit card:
Accounts which are due for billing are placed in a queue, which is processed nightly.
If the account is charged successfully, the customer receives a notification by email, indicating the amount billed. The expiry date for the account is reset.
Accounts which are not successfully billed (i.e. credit card declined) are kept in the billing queue for 12 days.
An email notification is sent to the customer every time billing is unsuccessful, indicating that the credit card was declined.
For customers paying by check:
Accounts which are due for billing are placed in a queue, which is processed nightly.
An invoice, detailing the amount due, is emailed to the customer.
The expiry date for the account is reset.