The TurboTax portal did not have a way to change direct deposit information on a tax return that had already been filed. If was for registering for those who didn't need to file. You can try going online to the portal and entering your current direct deposit information: https://www.irs.gov/coronavirus/get-my-payment
If that doesn't work and the bank refused your direct deposit because the information was no longer correct, the IRS will probably issue a paper check just as they do with tax refunds that can't be deposited.
You may also get a letter in 15 days that will give you a way to do something. We have no idea exactly what the letters will say.
