By enabling auto-renewal, your Bitdefender subscription will be automatically renewed before it expires, avoiding usage interruptions. This service is provided through highly secure, encrypted connection, so the financial details for the auto-renewal of your subscription are safely handled. This is why 90% of Bitdefender customers choose to keep Auto Renewal plan.
You can disable or enable the auto-renewal option at any time. Just follow the instructions below.
Note: If you have already been charged and want a refund, read – How do I get a refund?
From Bitdefender Central
To get a better understanding of the auto-renewal service, have a look here – Bitdefender’s Auto-Renewal Service.