How can I change the direct deposit information? I don't see the option to change or update the information even though I haven't filed my federal yet.

HOW TO CHANGE OR ENTER BANKING INFORMATION FOR REFUND

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/change-transferred-direct-deposit-information/L77NCbU6D_US_en_US?uid=m6tuh572

You cannot  change banking information while your return is in pending, nor can you change it after the return is accepted.  The IRS does not allow it.

I understand, but I haven't filed my return yet. I don't want to confirm payment and risk the refund being sent to the wrong account. 

I am having the same issue. My bank account number is incorrect.  I've logged into 3 different browsers and there is no option to edit the number.  I have not filed yet.