I am assuming you mean someone IN the DMV and not a DMV officer. Don't call, WRITE to the DMV head quarters in your state. Your letter will give you proof of the complaint. Also, send it registered mail, signature required to the 'HR' department so you KNOW they got it and WHO signed for it. You can find the address on line.If it is an officer, it would be addressed to 'internal affairs'.Make sure you have a legitimate infraction against the 'worker' or officer because false claims are not taken lightly.