As you can see, the bank letter example above has all of the required components (date, name of bank, account name, account number, routing number). 1. This is to confirm that is a client of our bank, Buyers Bank and maintain a banking account no.With us and is in good standing with our bank. This Letter of Credit is issued in connection with the application for Final Plat approval prior to completion of the Required Infrastructure. The document is a letter from a client to their bank requesting detailed information about the client's accounts and financial arrangements with the bank. City, State, Zip Code. We currently require a verified customer signature prior to completing a change of address, either in person or received in the mail.