Please explain that last comment. Now you just said it did NOT ask you to pay to get the 2017 file, so that's confusing. When you click to Download/print the 2017 PDF, does it tell you that you need to pay or not? If the 2017 return is locked, it should ask you to pay. I'll be telling you how.
If you have already upgraded the 2018 return to PLUS, we can tell you how to pay the 19.99 PLUS fee by credit/debit card. You cannot use the option to "pay later" out of the Federal refund for this purpose.
