Try resetting your password. Before running the account recovery tool below, log out of all Intuit accounts including this user forum, or you might end up in a loop. Then clear your browser Internet cache, close your browser, then reopen it, and go to the link below. You may wish to copy this link so you can paste it into the new browser session.
https://myturbotax.intuit.com/account-recovery
If you have tried using the account recovery page with no success, you might need to submit an Account Recovery Request:
https://ttlc.intuit.com/replies/3300098