Unfortunately, if your Tax Return has already been E-Filed and accepted, you cannot change anything at this point. If the bank rejects the Direct Deposit of your refund from the IRS, it will be bounced back to the IRS. At that time, the IRS will send you a paper check instead.
Check out the TurboTax FAQ below for more details:
https://ttlc.intuit.com/replies/3302459