Did you get a NETFILE confirmation number when you filed? If you didn’t get a confirmation number, then your return was not filed. This TurboTax FAQ shows how to find it: How do I find my NETFILE confirmation number?
If you have TurboTax Live Assist & Review, see this TurboTax FAQ to learn how to talk to a Tax Expert or book a review: In TurboTax Live Assist & Review, how do I talk to a tax expert?