Unauhtorised charge on credit card

Hello David,
Thank you for contacting AVG Community Support. 
We regret the inconvenience caused. We'll check and help you. 
As it isn't advised to discuss personal/account related info here. we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.

I cancelled my AVG subscription in January this year but a charge for C$67.69 has been posted on my visa card on November 7th.    The location of the charge says www.avg.com IE.    How do I get a refund

Hello David,
Thank you for contacting AVG Community Support. 
We regret the inconvenience caused. We'll check and help you. 
As it isn't advised to discuss personal/account related info here. we've sent you an email with further details. Please check your inbox/spam folders to find the email and use it to get back to us.
Thank you and keep us updated.