I can't complete filing my return. I'm eligible for a free return. When I click on "confirm order", the screen pops up, but it's dimmed and buttons are not "clickable".

Can you tell me what Internet Browser you are using?

chrome

I had the same problem in Google Chrome.  I logged in with Firefox and was able to type in the pre-paid code.  I hope this helps.

Im having this same problem in Safari

Please see this article: https://support.turbotax.intuit.ca/turbotax/en-ca/faqs/The-screen-goes-dark-when-trying-to-pay-or-st...