If you are registered for Auto-Renew services, you will receive reminder emails about two weeks before your current subscription expires. You can easily cancel Auto-Renew by following the links in the emails. Otherwise, you can do nothing and your subscription will be automatically renewed.
About a week before the expiration date, your subscription will be renewed automatically at a price lower than or equal to the most current standard product price. The charge will be made on the same credit card you used for your original purchase. You will then receive an Auto-Renew confirmation email upon successful renewal. Your product(s) should automatically be available.