After you file

Many banks will tell you NOT to use the 'account number'  printed on an initial/courtesy check they provide when you first open an account --it often differs from your actual account number.

If that is what you used there is no way to change it after you have filed your return.

When the bank returns the deposit to the IRS, the IRS will re-issue your refund as a paper check and mail it to the address on your return.