If you want to complain about their service attitude, I suggest you call the government service hotline 12345 directly. 12345 is a special service for all kinds of complaints and problems.
You can choose to complain on the government website, hotline 12345. You need the complainant's real name, and leave his contact information, work unit and contact address, so that the later staff can contact you conveniently. These informers will keep secrets according to the confidentiality regulations.