Do not see a way to amend 2020 tax return

I used Turbotax online to free file my 2020 tax return. I made a mistake while answering the Q 'Can someone claim you as a dependent'. Instead of saying No, I responded with a Yes.

 

In my turbotax account I do not see a way to amend the return though the help topic 'How do I amend my 2020 TurboTax Online return?' says I should see one in 'Your tax return & documents' section.

 

Any help will be greatly appreciated.