Are you in Hawaii by any chance? If so, the HI dept of taxation changed the format years ago. The old format started with the letter "W" followed by numbers. The new format starts with two letters, followed by numbers. An example of the new format would be GE-009-176-8832-01
If your property manager is properly licensed with the state, you can look up their number at https://portal.ehawaii.gov/business/tax-services/
