Please see the following IRS FAQ (Select the link below) on "What should I do if I entered an incorrect routing or account number for direct deposit of my refund?" as this will explain what happens next with your refund when you have entered incorrectly your direct deposit account information:
https://www.irs.gov/help-resources/tools-faqs/faqs-for-individuals/frequently-asked-tax-questions-an...
For additional information here is the TurboTax FAQ with a video of the process as well:
https://ttlc.intuit.com/replies/3302459
