Hehe, what others preach is also someone else's business, but the lack of information will usually make up for it. However, no matter how big the state-owned enterprise is, it can also provide a business license and report it to the personnel department. Because I have encountered this kind of thing many times, I have prepared a stamped copy and attached the words "just do what". Say it can't be perfunctory, and explain that the letter is just a ghost letter.