Go into your Advantage account and click the link so that the license code is copied to your clipboard… then scroll to the very bottom of the page.....you should see a comment that you can download your software by clicking THAT link there.
https://ttlc.intuit.com/community/choosing-a-product/help/when-can-i-expect-to-receive-my-turbotax-advantage-order/01/25985#M121