A bank letter is an official document from your bank that provides important information about your business' official bank account. Our full-service banking center is located in Northwest Dallas east of Interstate 35E and Royal Lane.To have your pension check deposited directly into your checking account, follow these instructions: 1. Table 2 – Reserve Bank and Serial Number Relationship. Reserve Bank. Letter. Designation. Number. Designation. ANBTX in Dallas off Oak Lawn Avenue offers banking solutions and financial tools to help you succeed. Learn more about our hours, address, and services. We are committed to being your bank of choice. Party check (not written to the receiver). 3. State Bank of Texas is one of America's leading hospitality lender and one of the nation's most successful community banks.