If there is no record of your return at Where's my Refund or you are getting the message "You may not have entered your information correctly", an important factor can be if you are married filing jointly. Make sure you are using the Social Security Number for the name that appears first on the return. Keep in mind that once the IRS notifies TurboTax that your return was accepted we won't get any more information from them.
Here are some other common reasons why your refund is not showing at Where's My Refund:
https://ttlc.intuit.com/replies/4242575