After you file

I don't think I have FILED yet. It asked me how do I want to pay and I said "pay through my refund", ie. turbotax will take the payment from my refund. Then when I saw that it had my old bank acct as another option I realized I'd need to change that but it never offered me the option to do so.
I am afraid to click the Final button to file  because it has not yet asked me for the account I wish to deposit it to. When will or how do I get that option to change where it goes.
If I change payment to credit card does it FILE as soon as it accepts payment or will I THEN (after paying) get the option to say WHERE my money should go (i.e. enter a new bank account)?
Sorry but I don't recall having this issue ever before...