Charcing Creditcard

Hi Theo,
We are glad to clarify the charges and assist further.
A charge of EUR 54.99 was debited for AVG Internet Security (Multi-Device) subscription due to auto-renewal service enabled for its trial order.
We do not process any unauthorized charges without intimating our customers. We sent a pre-billing notification prior 10 days of subscription's expiry.
Do we have your permission to initiate a refund for this renewa?

I have never bought anything from AVG. I use only AVG Free. 
Now I received a bil for a total of € 54,99 for what you call Automatic lengtening.
You charged me on my Creditcard bud I did not authorized you to do so.
I wont you to pay me back this money on my creditcard and stop sending me further mails.

Theo Visser.

Hi Theo,
We are glad to clarify the charges and assist further.
A charge of EUR 54.99 was debited for AVG Internet Security (Multi-Device) subscription due to auto-renewal service enabled for its trial order.
We do not process any unauthorized charges without intimating our customers. We sent a pre-billing notification prior 10 days of subscription's expiry.
Do we have your permission to initiate a refund for this renewa?