(1) The department shall have the authority on its own motion or upon complaint made to it to investigate or audit any course to determine compliance with chapter 18.280 RCW and with the rules and regulations of this chapter.

(2) Complaints concerning approved courses should be made in writing to the department and contain the following information when appropriate:

(a) The complainant's name, address, and telephone number;

(b) School name, address, and telephone number;

(c) Instructor(s) name;

(d) Nature of complaint and facts detailing dates of attendance, termination date, date of occurrence, names, addresses and positions of school officials contacted, and any other pertinent information;

(e) An explanation of what efforts if any, have been taken to resolve the problem with the school;

(f) Copies of pertinent documents, publications, and advertisements.