An employee organization may not: interfere with, coerce, or restrain an employee in the exercise by the employee of any right under this subtitle; cause or attempt to cause the Commission to discriminate against an employee in the exercise by the employee of any right under this subtitle; coerce, discipline, fine, or attempt to coerce a member of an employee organization as punishment or reprisal; coerce, discipline, fine, or attempt to coerce a member of an employee organization for the purpose of impeding the member’s work performance; refuse to negotiate in good faith with the Commission as required under § 18–207 of this subtitle; or fail or refuse to cooperate in impasse procedures and impasse decisions as required under § 18–208 of this subtitle. Only an eligible employee may file an unfair labor charge against an employee organization for a violation of subsection (a)(3) or (4) of this section.