How can I buy a subscription without auto renew feature?

I want to renew my subscription but do not want that auto renewal feature forced on me.

Hello Paul. 
Thank you for contacting AVG Support Community. 
We will certainly check and help you. 
Please contact our sales team using the below link. They will help you to renew your subscription and help you to turn OFF auto-renewal. 
https://support.avg.com/support_sales?l=en
If you have any other queries, please feel free to contact us back. 
Thank you.