Don't wait for a phone call/letter, this will just cause a delay.

Either way, if they have bad account info or no account info, you'll need to open a new checking or savings account and then walk that into your SS local office to update.

Credit Unions or small, local banks will often be a good place to start if you have only a small deposit to open an account with. If you had a problem with a checking account getting closed on you, a savings account without a debit card will be your easiest/quickest way to do so.

If you'd like to open a checking account, but have been denied because of issues with a past account, pm me and I'll try to direct you to help.