Use this TurboTax website to check your orders and payments - http://turbotax.intuit.com/commerce/orderstatus/orderstatus.jsp
If your orders only show one purchase then you can do anything you want with the second program. If there are two purchases then you can request a refund for the second progrm using this website - https://support.turbotax.intuit.com/forms/refund-request.jsp