Non authorized bill from AVG

Quoc, We have initiated your refund request for AVG TuneUp (Order Ref. No. 54243349600 ) in the amount of $49.99.

This refund will reflect in your original payment method within 5-7 business days.

We've also sent you an e-mail confirming the same.

I was charged $49.99 on my account that I did not authorize from DRI*AVG Technologies.
I did not receive any emails notification  to the order being placed to let me know in advance that this payment was due. I Need a refund and support. Please!
Order details
Renewal order number: 54243349600
Original order number: 10312339310
Renewal date: November 14, 2018

Quoc, We have initiated your refund request for AVG TuneUp (Order Ref. No. 54243349600 ) in the amount of $49.99.

This refund will reflect in your original payment method within 5-7 business days.

We've also sent you an e-mail confirming the same.