Payment of Anti Virus Cover

Hello Susan,
We apologize for the inconvenience caused.
Upon reviving your account using your email address and order number which you have provided, we confirm that you have not been charged for £39.99 on 15.5.16 by AVG. In this case, we suggest you to please contact our AVG Billing team via the following link to assist you better. Please click on the following link https://support.avg.com/support_sales?l=en_US and choose "Chat us online" at the end of the page. One of our representative will check this for you.
Please feel free to contact us for any further assistance.
Have a great day.

Hello Susan,
We apologize for the inconvenience caused.
Upon reviving your account using your email address and order number which you have provided, we confirm that you have not been charged for £39.99 on 15.5.16 by AVG. In this case, we suggest you to please contact our AVG Billing team via the following link to assist you better. Please click on the following link https://support.avg.com/support_sales?l=en_US and choose "Chat us online" at the end of the page. One of our representative will check this for you.
Please feel free to contact us for any further assistance.
Have a great day.

I purchased AVG anti virus 701-3122067 for £29.99 on 17.5.16 with a visa debit card ending in 8824…  However looking at my Credit card account ending in 5189  I have been debited £39.99 on 15.5.16 by AVG.  I have no idea what this is for??? as I have given no instructions to use this card.  Please reimburse immediately.