A person who is aggrieved by a discriminatory practice prohibited by this chapter may sign and file with the commission a written, verified complaint stating the name and address of the person alleged to have engaged in the discriminatory practice, and the particulars of the discrimination. A complainant may withdraw the complaint at any time before the service of an accusation under AS 18.80.120. A withdrawal must be signed by the complainant and be in writing. A withdrawal does not limit the discretion of the executive director provided in (b) of this section.