Macbook pro activate license

Hello JAMES,
Thank you for contacting AVG Community Support.
We apologize for the inconvenience caused. We'll check and help you out. 
Please share us the screenshot where it shows the product not supported error, so that we can check and assist you accordingly.
Refer this article for - https://support.avg.com/SupportArticleView?urlname=avg-create-screenshot
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions.
Awaiting your response.

When I enter my paid activation key it says "product not supported", what am I not getting right

Hello JAMES,
Thank you for contacting AVG Community Support.
We apologize for the inconvenience caused. We'll check and help you out. 
Please share us the screenshot where it shows the product not supported error, so that we can check and assist you accordingly.
Refer this article for - https://support.avg.com/SupportArticleView?urlname=avg-create-screenshot
You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions.
Awaiting your response.