Why am I billed twice?

My AVG account is being charged twice by Digital River.  Why twice when I subscribed to one AVG product for one year

Hello Gerard,

As it is not advised to discuss the subscriptions details on community, we have sent an email and explained the status.
Please revert to our email for further assistance.
Thank you.

Hello Gerard,

As it is not advised to discuss the subscriptions details on community, we have sent an email and explained the status.
Please revert to our email for further assistance.
Thank you.