How can i find last year's business return if none of the log ins options Turbo Tax is offering me are correct? I have the email saying the return was accepted.

I have tried to recover the log in I used because I can't remember it but none of the log in options connected to my email address take me to that business return. Any suggestions on how to recover an unknown account? I have mailed off for a transcript but still hoping to find it digitally!