Attach preprinted voided check or signed bank letter for the account to be credited. This may not be a temporary account number.A bank letter is an official document from your bank that provides important information about your business' official bank account. To get your direct deposit started, fill out the form below and return it to your payroll department. After you get a Writ of Execution, you can use it to ask that money be taken from the other side's bank account. This is called a bank levy. We will accept a bank letter in English if it includes all the required information. Documents not in English will not be reviewed. A simple letter letting asking your organization to change from your old account to your new account and give them the new account number.