After you file

@DaleE You are confused or misinformed.     If you prepared a 2019 return using online TurboTax and PAID for the online software, you will be provided with a download of the CD/download software if you need it in order to change/edit your 2019 return.  Customer support will give you the download.   Then you can finish preparing the 2019 return and print, sign and mail it.   E-filing has been closed for 2019 return since October of 2020--by the IRS.

If you need to add another state or upgrade to a different version of the software to complete your 2019 return, that is a different story---then you have to pay for the extra state(s) or the upgrade.

 If you have any changes/corrections at all to make to your 2019 return, you now have to complete it using desktop software, which you must download to a full PC or Mac  (not to a mobile device).Then you need to print, sign and mail it.

https://ttlc.intuit.com/questions/2559403-how-do-i-finish-a-prior-year-return-that-i-started-in-turb...

If you already paid for your online software you can ask customer support for a download of the desktop software.

They are available from 5 a.m. to 5 p.m. Pacific time Monday-Friday.

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

Your 2019 return was not removed----you have to access it by using the right account and user ID:

  You have to access your own account and/or  print it for yourself using exactly the same account and user ID that you used when you prepared the return.

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/01/270...

Many people have multiple TT accounts and forget how to access them.  Log out of the account you are in now.

Account recovery

https://myturbotax.intuit.com/account-recovery/

https://ttlc.intuit.com/questions/1901535-forgot-your-turbotax-online-user-id-or-password