Hi There:
Sorry for the problems.
1) Did you request a transcript from the IRS. See Link below. This will tell if returns have been filed .
IRS Transcript
2) If nothing on IRS Website then search Turbo Tax online for returns that might have been prepared but not filed. If nothing on your existing Turbo Tax account then see link below for account recovery request.
Account recovery
Unfortunately if steps 1 & 2 are not successful, then tax returns will have to be prepared and mailed to the IRS. The below link will prepare 2019, but for earlier years other software will have to be located. I believe Amazon offers the older software.
Turbo Tax 2019 software
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