How do we stop automatic billing

AVG keep taking 81.99 out of our Credit card and we haven't used it in years. Invoice ID:  703-2432884

Hello Kerry,

I understand your concern. I see from your record that you have an active subscription of AVG Internet Security under this email address paulxxxxxxxx@bigpond.xxxx. I have cancelled the automatic renewal for you and you will not be charged by AVG in future. If you wish to get refund for this recent renewal, please let us know and we will assist you further.
Hello Kerry,

I understand your concern. I see from your record that you have an active subscription of AVG Internet Security under this email address paulxxxxxxxx@bigpond.xxxx. I have cancelled the automatic renewal for you and you will not be charged by AVG in future. If you wish to get refund for this recent renewal, please let us know and we will assist you further.

Sure, Kerry. 

We have escalated your refund request to our refund team. They will get back you to via email once the refund is initiated. Thank you!

Thank you Karthikeyan, 

I would like to obtain a refund of the recent purchase please. The invoice number is 703-2432884

Thank you. 
Kerry Griffin