Hello Bruce,
I understand the inconvenience caused, let's work together to fix this issue.
You have AVG Ultimate, expires on 2020.5.28. There is no need to purchase it again. If you have installed AVG Free Antivirus/AVG Internet Security trial, then please open it > My AVG > My Subscription > login (enter email address and AVG MyAccount password).
If you have not installed it, then you can follow the instruction to download/install/activate AVG Ultimate.
If the issue still persists, then please share a screenshot of the page (which is asking you to buy it again).
You can post the screenshot here on your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.
Best regards,
Alok.
My AVG Ultimate had expired last year. I Just Purchase the New program from Office Depot, Now when I try to install it, AVG wants me to Buy it AGAIN!!!
This is Bull Shit!
I had a similar issue. It helps to uninstall your previous version before trying to install the new version.