Here are their rules, and their rules suck.

https://proconnect.intuit.com/community/accounting/help/proseries-cancellation-refund-and-upgrade-re...

Here are the Intuit chief cheeses.  E-mail, phone, drive to their offices, whatever it takes.  I can understand if you have downloaded the product there would be no going back, but if you never downloaded the product, it would suck if you can't get a refund.  As a side note, you have my permission to use colorful language when you are dealing with them if they refuse to give you any sort of refund.

https://www.intuit.com/company/executives/