Did you double-check your bank account information to make sure there was not a typo in the information provided? You can verify your direct deposit information by following the steps in this help article: Where can I find my direct deposit account information after I've e-filed?
Were you able to ask your bank if they rejected the deposit? If they did reject the deposit, the IRS will mail your refund check to the address on your tax return. For more information please see the below TurboTax help article.
What if I entered the wrong bank account for direct deposit?