Go to this website to request a refund of your software purchase - https://support.turbotax.intuit.com/forms/refund-request.jsp
For assistance with any billing or shipping issues you will need to contact TurboTax support.
Use this website to contact support during business hours - https://support.turbotax.intuit.com/contact/
Support can also be reached by messaging them on these pages https://www.facebook.com/turbotax/ and https://twitter.com/TeamTurboTax