What does “Auto-renew” mean?
Auto-renewal means that the next subscription will automatically be taken from the available subscriptions, as soon as the current subscription expires. The next subscription must be identical to the current subscription. If an identical subscription is not found, auto-renewal will not take place and your backups may fail. No subscriptions will be bought automatically—only those available at the time of auto-renewal can be used. You can select auto-renewal for each individual subscription or set up bulk auto-renewal for all activated subscriptions you have.