I used H&R Block's routing number and account number by mistake

If you entered incorrect routing and account numbers for your direct deposit once your return has been accepted (or mailed), it's too late to change direct deposit bank account information. If the info you provided is for a closed or invalid account, the government will mail you a refund check, but the bank will need to reject the deposit first.

Now, if your recently e-filed return is in pending status, wait to see if it is either accepted or rejected.

• If rejected, open your return in TurboTax and go through the File section again to update your bank account before re-submitting your return with any applicable corrected information.
• If accepted, you'll get your refund check in the mail or will be direct deposited if you listed a valid bank account when you filed.

Please see this TurboTax FAQ for more information.