If you are using the TurboTax online editions you Must sign onto the website with the exact same User ID you used to create the online account.
See this for how to view all of your TurboTax accounts - https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-...
To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
