Unwanted anti virus

Hello, Jo.
We'd be glad to clarify this. We could not find any active AVG subscription is registered under the email address you used to contact us here. It could be possible that you've been charged for an automatic renewal of an AVG subscription registered with a different email address.
We've sent an email, please revert it with requested information to help you further

I’m having the same issue. I would like to know why £49.99 has come out of my account when I have never signed up for anything? 
How do we get a refund?

Hello, Jo.
We'd be glad to clarify this. We could not find any active AVG subscription is registered under the email address you used to contact us here. It could be possible that you've been charged for an automatic renewal of an AVG subscription registered with a different email address.
We've sent an email, please revert it with requested information to help you further