If you paid TurboTax fees out of your Federal refund, that process is handled by a company SBTPG. The IRS sends the funds to SBTPG's bank where the fees are subtracted. Then SBTPG would attempt a direct deposit to your bank account, which you say was no longer valid. In that case, what normally happens is your bank should send the funds back to where it came from; i.e., to SBTPG's bank, and SBTPG's bank issues you a check in the mail. However, on less common occasions, SBTPG's bank might for some reason send it back to the IRS, then the IRS would issue you the check in the mail.
You can look up your situation at SBTPG's website to see if you can learn anything there. Use the "For Taxpayers" portal at:
https://www.sbtpg.com/
SBTPG has a phone contact page at the following link. It also shows their business hours. Even when they are closed, you may be able to get automated info, or you can log in as above.
https://help.sbtpg.com/hc/en-us/articles/230084587-Contact-Information
