Sign in to TurboTax on the account that is associated with your Advantage program
Click Intuit Account at the bottom left and then Products and Billing. Your download will be there.
You must use the exact same User ID you used to purchase the software when signing onto your download account here - https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download
If that link does not show your purchase for download then use this TurboTax website - https://shopping.turbotax.intuit.com/app/downloads/