How do I change the billing info for renewals?

How do I change the billing info for renewals of Internet Security on pc?

Hello Shirley,
We'd be glad to help you with the necessary information.
Could you confirm whether you would like to update payment info or billing address for the upcoming renewal?
You can also contact our Billing team using this link (https://support.avg.com/support_sales_chat?l=en) and get assistance.