Taken money from my paypal account without authorisation

Hello Angela,
Thank you for reaching AVG Support Community.
We will certainly check and help you.
We could not find the active subscriptions/trial order on the account that you used for the AVG community. Hence, we have sent you an email requesting a few details to locate your subscription. 
Please check for the email and revert to us.
Thank you for your understanding.

AVG has taken £74.99 from my paypal account which I did not ask for and have avoided renewing.  I have logged on to my laptop today and I am still being hounded for subscription so why and what is the money that has been taken from me.  I WANT IT BACK.

Hello Angela,
Thank you for reaching AVG Support Community.
We will certainly check and help you.
We could not find the active subscriptions/trial order on the account that you used for the AVG community. Hence, we have sent you an email requesting a few details to locate your subscription. 
Please check for the email and revert to us.
Thank you for your understanding.