Hello Joanne,
Digital River provides eCommerce and payment services for AVG orders processed via AVG Online Store.
We had a different payment gateway earlier, but we implemented "DR" in the year 2017 and currently all the orders of AVG will be done only through Digital River payment gateway.
Hence, AVG orders will have the name as "DRI" which is Digital River INC.
Whenever you have been charged for AVG and has a name "DRI*AVG", then it is our legitimate payment gateway.
Since you had auto renewal enabled, you received notification that it is going to get renewed through Digital River.
Thank you.