It was easy to find the upgrade button from the My Account menu, but I only did that because in the FAQ and Help guide it said to click on Business to delete a Vehicle. I keep getting asked to enter vehicle sold date in the federal review and CompleteCheck stages.  Upgrade did not help me remove the issue.  I want to downgrade back to basic or premier edition.  I also need to fix the repeated occurrence of the review stage regarding Sale Date of my Vehicle I did not sell it, I just stopped using it for business!