Message saying license is wrong on free product

I keep getting a message stating my license is wrong and to enter a new one.  I don't have a license or a paid product but cant stop this message from coming up.  I did try to order the paid product but couldn't install it … it was a bait and switch . When I called to have support putting paid product on they tried to sell me $300 of other crap to "clean up" my computer.  
Not happy with this and think it's a scam. 

Anyone know how to keep this stupid message from coming up?

Hello, Elizabeth.
I apologize for the inconvenience caused to you. I see that you have an active AVG Internet Security - Unlimited (1 year subscription) valid till 11th Dec 2018. Please provide a screenshot ( http://avgclick.me/getscreenshot ) of the message that you are receiving to assist you further.

Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.

Hello, Elizabeth.
I apologize for the inconvenience caused to you. I see that you have an active AVG Internet Security - Unlimited (1 year subscription) valid till 11th Dec 2018. Please provide a screenshot ( http://avgclick.me/getscreenshot ) of the message that you are receiving to assist you further.

Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions.