Was your 2018 return in your new account also prepared in Free Edition?
Have you located the 2017 return in the old account, and when you try to download/print the PDF, does it ask you to pay?
If so, we can tell you how to start a 2018 Free Edition return in the old account just long enough to upgrade to PLUS and pay the 19.99 by credit/debit card. You do NOT have to actually prepare and file the return. You'll only need to fill out a little of the My Info section. I can tell you all the steps.
Be aware there's a free option if a tax return transcript would suit your purpose. You may be able to immediately download a 2017 return transcript at the IRS website at the link below. If you don't qualify to open a free IRS account there, you can order one to come by postal mail, which normally takes 5-10 calendar days.
<a rel="nofollow" target="_blank" href="
http://www.irs.gov/Individuals/Get-Transcript">http://www.irs.gov/Individuals/Get-Transcript</a>
