Un authorised bill for something I did not ask for

AVG Protection
3

Hello Victor,
Thank you for reaching AVG Support Community.
We will certainly check and help you.
We could not find any recent renewed order on the account that you used for the AVG community. Hence, I 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.

1

I have just received a bill from M&S Bank  for £74.99  Which is something I have not asked for and is a product that is not even explained .What is this for?

2

Hello Victor,
Thank you for reaching AVG Support Community.
We will certainly check and help you.
We could not find any recent renewed order on the account that you used for the AVG community. Hence, I 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.