Did you try signing onto your download account here - https://shop.turbotax.intuit.com/commerce/account/secure/login.jsp?pagecontext=download
If you are an Advantage subscriber there may be an issue when trying to download the software. See this TurboTax support FAQ - https://ttlc.intuit.com/questions/4136734-why-am-i-unable-to-download-my-turbotax-advantage-2017-sof...
For additional assistance with this issue contact TurboTax support.
Use this website to contact TurboTax support - https://support.turbotax.intuit.com/contact/
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax
Note - Support is open from 5am to 5pm Pacific time, Monday thru Friday
