AVG Unlimited fails to update subscription

I paid $99.99 for the 3-year Tune-up Unlimited (Invoice #***********).  When I open AVG, it keeps saying I must renew in [27 or less] days, yet my subscription does not expire until May of 2020!!  I need this fixed!!  (This is my fourth complaint on this matter in 2 weeks, yet no resolution!!)

Mark,
I can understand your frustration. Don’t worry I'll help you with your issue.
I see that you have upgraded from AVG PC TuneUp to AVG TuneUp Unlimited.
So, we need to remove the existing product and install the AVG TuneUp Unlimited.

Please uninstall the AVG PC TuneUp by following the steps provided in this article http://support.avg.com/SupportArticleView?urlname=How-to-uninstall-AVG

Once uninstalled, please install the AVG TuneUp Unlimited from http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-Performance