When you sign in and go to the 2015 Tax Timeline, are you able to scroll down to "Some things you can do" and view/download/print the PDF? Does it have the Form 1040X and the changed forms? If not, is there also a link under "Some things you can do" for "Download all forms and worksheets?" If so, does that larger PDF have the 1040X?
If not, is there a link you can click on to download the *.tax2015 data file and get the amend software? (you shouldn't have to pay for it)
If none of the above is successful, then phone TurboTax Customer Support today and ask them for help in resolving your situation. If neither of the above PDFs had the Form 1040X, then they can help you download your *.tax2015 data file and the software to print out a copy.
To get a phone number for TurboTax Customer Support, fill out the small form at the link below. Enter a short question or a few keywords. You will be assigned a phone number based on your issue. The phone number will not display when they are closed.
FAQ: What is the TurboTax phone number?
https://ttlc.intuit.com/replies/3300041