Comment Not in my experience (Score 3, Insightful) 205
As a reseller of AVG, I have never experienced an upgrade license behaving in this manner.
If the end-user is unintelligent enough to purchase a brand new license direct with AVG, of course they will get a brand new license that starts on the date they purchase it.
However, if they renew an existing license, the license always renews from the existing expiration date, AND they often tack on a few extra days or weeks to the license. Even if they are renewing and also upgrading to a different version (say, Antivirus to Internet Security), the license is upgraded, they are charged the prorated upgrade price based on time left on the existing subscription, and then the renewal year(s) are added.
So if you are getting short changed, it's your own fault, not the vendor.