You can log back into your account go into the review
and see how much you owe. If it doesn’t load properly, you try clearing you
cache, or using a different browser.
Here is how to clear your cache (browsing
history): https://turbotax.community.intuit.ca/replies/2647843
You can also use My Account or contact the CRA to
get the amount that you owe:
https://turbotax.community.intuit.ca/replies/2647704