If the Department receives a written complaint that complies substantially with Section 240.210 but is lacking an element that still must be provided, the Department may accept the complaint as an incomplete complaint. The Department shall notify the complainant in writing of the element that must be supplied. If the complainant fails or refuses to perfect the complaint within 30 calendar days, the complaint may be dismissed pursuant to Section 240.220.
Ill. Admin. Code tit. 56, § 240.230