I was in the process of renewing from my Avast UI; actually from the popup indicating that my license would expire in 28 days and I should renew now. But, prior to actually executing the renewal (and recalling what happened the last time), I queried Avast as to the renewal effective date. Avast forwarded my query to DeadRiver, who responded that the license would start from the time of purchase.
Is there some other method of renewing, where it will be documented, before I supply my credit card number, that the renewal will extend my current license, rather than replacing it?