Contact your bank for a power of attorney form. Empower a trusted representative with an Authorization Letter.Make a free Authorization Letter in minutes with our customizable template. It's pretty much simple. Contact your bank for a power of attorney form. The letter must contain the following: The company name; Registered company number; Registered office in country of incorporation; Preferred type of payment. An Authorization Letter allows you as an account holder to grant another trusted individual to perform banking transactions on your behalf. Please note that most Federal employees work on a Monday through Friday schedule. Lucie Blvd, including at CVS, Burger King,. Pollo Tropical, and Seacoast Bank.