In the File section of the online program on Step 2 when state taxes are owed you had to select one of the options given for paying the state taxes owed. The tax return could not be filed without selecting a payment option.
How you chose to pay the state taxes owed will be on the State Filing Instructions page for the state tax return. Use Print Center.
To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.
This will take you back to the 2021 online tax return.
Click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return. Choose the option Include government and TurboTax worksheets
Here's an example of a Direct Debit....as arranged with an efile...for NC (a couple years old, but still the same). Part of your full set of documents, always save a Full copy as a PDF every year right before you file.
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Your only proof is your bank account statement or credit card statement showing the payment coming out. And Turbo Tax doesn't pay any tax due for you. Turbo Tax just sends your payment method to the state. You either put down your bank account number for the state to pull it directly out of your account or you needed to mail in a check. Most states don't let you pay by direct debit. Did you check your bank account to see if it came out? You should have an instruction sheet telling you how to pay it.