After you file

@Mike9241 - they may have fixed the problem with the website, but they state you can not change banking information:

 

these are FAQ's from the irs website: 

 

 

Get My Payment will reflect the account information provided on your 2019 tax return, Non-Filer Registration, entered on Get My Payment before Dec. 22, 2020, or provided by a Federal Agency who issued benefits to you (Social Security Administration, Veteran Affairs, or Railroad Retirement Board).

Your payment information cannot be changed. If you don’t get a payment and you are eligible to receive one, it may be claimed on your 2020 tax return as the Recovery Rebate Credit.

 

Your payment information cannot be changed. If you don’t get a payment and you are eligible to receive one, it may be claimed on your 2020 tax return as the Recovery Rebate Credit.