If you are locked out of your TurboTax account, see this help article for detailed instructions to recover your account.
If your return was rejected and you were expecting an email with an error code, search for an ACTION NEEDED! email from turbotax@intuit.com. It will give you a brief explanation of your rejection and how to fix it. Check also to see if the email may have been routed to a junk folder.
If you still can't find the email and were unable to recover your account using the instructions in the help article, see this help article and this one for instructions on how to contact TurboTax customer support depending on which product you are using.
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