You are installing the 2019 TurboTax software and not some prior year software, correct?
If you are installing the 2019 software and you cannot see where to enter the license code then contact TurboTax support on Monday for assistance.
Support is open from 5am to 5pm Pacific time, Monday thru Friday
Use this website to contact TurboTax support during business hours - 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
