Query re. charge of £49.99. Why?

Hi Hazel,

We will help you to cancel the charge.

We are unable to locate your account with the email address.

We have sent you an email to your registered email address. Please reply back to the email with the requested information.

Why has my credit card been charged £49.99 without authorisation. Please explain

My credit card has also been charged $44.99 each month for the past two months without authorization. I intentionally let my paid subscription expire, and I should only have Antivirus Free.

Hi Hazel,

We will help you to cancel the charge.

We are unable to locate your account with the email address.

We have sent you an email to your registered email address. Please reply back to the email with the requested information.

Hi Robert, 

We are here to help. 
We do not process any unauthorized charges without intimating our customers. If you are enrolled into an automatic renewal, you will receive an email notification prior to the expiry date. This contains information on the date of charge and a link to cancel this automatic renewal.
As we are unable to locate your account details, please create a individual post and write back to us. 
Else, contact us via chat medium using this link (https://support.avg.com/support_sales_chat?l=en) and get further details.