Renovação sem minha permissão || Renewal without my permission

Hello Marcilio. 
Thank you for contacting AVG Community Support.
We certainly check and help you.
As it is not recommended to discuss your order/subscription details over this public post. Hence, we've sent you an email to your registered email address. Please check for the email and revert to us.
Thank you for your understanding.

I request a refund, it was automatically charged without my permission.

Hello Marcilio. 
Thank you for contacting AVG Community Support.
We certainly check and help you.
As it is not recommended to discuss your order/subscription details over this public post. Hence, we've sent you an email to your registered email address. Please check for the email and revert to us.
Thank you for your understanding.