Since you've been using TurboTax Online, you'll likely want access to your old account and returns.
To recover your account, follow the steps in this link:
https://ttlc.intuit.com/questions/1901535-forgot-your-turbotax-online-user-id-or-password
Since it sounds like you may have already tried those options, here's a link to contact TurboTax. Select TurboTax Online and you'll see a phone number listed at the end.
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
If you're starting over and just want your previous return, you can request one from the IRS:
https://ttlc.intuit.com/questions/1901218-can-i-get-a-copy-of-my-tax-return-from-the-irs
I hope that helps you!
