When you pay by credit card or PayPal, an automatic payment is created for the following year.
The payment processor sends you a notification when this happens and we send reminders at least 24 hours before the automatic charge takes place.
All automatic payments go through exactly 7 days before the date they were created as to avoid any downtime of your websites if there is a problem with the credit card/PayPal account.
The payment processor has no way of knowing the actual expiration date of the service.