What Is In A Bank Letter? Direct Deposit allows State of Illinois payees to electronically receive their payments.Letter Issued on Bank-Fintech Partnerships. Here are some of the forms our members most commonly use. To get started, all you need is your ULID, password, and bank account information. Bank account information can be found on a check or obtained from your bank. 1. Complete this letter. 2. If submitting bank letterhead, the bank officer's name and signature is also required. This information will be used to verify your account number. You can also find your account number on the home page of your CEFCU On-Line® or Mobile Banking account, or with the Account Letter found under Services.