Select Download and then follow the screens to submit your data request
You’ll get an email once your data is ready, with instructions for downloading. Requests can take up to 45 days, depending on how much data is involved.
You'll be able to submit a new request for data from the same account after you receive that email.
Once you've downloaded your personal data file safely and securely from your Intuit Account, use the instructions below as needed to open the file and view it in a way that’s most helpful to you.
This doesn't answer the question of how to revoke permissions, does it?
There are two answers already on this thread that answer this.
In order to undo the permissions that you clicked on accidentally you can email privacy@intuit.com as @Cynthiad66 says above. When emailing state that you would like to revoke your "consent for use of tax return information."
You can also go to the Intuit Privacy Center. All of the information that you have entered into Intuit can be controlled there and you can revoke your consent to share the information that you had previously agreed to. Here is a link to the privacy center.