Sorry to hear you are having this problem. I have included below, for your information, our TurboTax FAQ about NETFILE. Please review the list of errors and ineligibility list included in the links to see if any of the situations apply.
If the issue was not solved, I believe one of our telephone support agents would be able to help you further as they can view your screen, if necessary, to guide you. To contact us please follow this link: Contact Us form. Once you go through the steps and complete the form, the phone number to speak to a TurboTax agent will appear on the page.
Thank you for your patience.