I am not sure if you were accessing the Assist and Review from the correct icon:
If you are using the TTO (online), you will need the Assist and Review option.
To access the feature --> on the right corner of the top bar --> click on expert help --> ask the question, enter your information, and click confirm
If you want a full review --> from the left menu --> review --> expert review --> you can schedule a time to go over your return
If you are using the TTD (desktop), you will need the Pro-Review option:
On the main screen click on the box "I want my return reviewed"
The price will be added to the return before Netfiling
To ask for help --> use the support icon on the top blue bar --> fill your information and confirm
Check the link below for more information:
https://turbotax.community.intuit.ca/community/product-information/help/contact-us/00/873707
I hope this was helpful
