Unexpected bill

I have an avg account with the free internet security subscription and have an unexpected 29.99 bill on my debit account. i havent touched the avg app in a months and so definately didint buy anything so need a refund.

Hello Andrew,

We acknowledge your refund request.
We do not find any active subscription registered to the email address that you have used to contact us here.
I have sent an email requesting more details to locate your order.
Please check and revert back to us.