481—73.2 (10A) Complaints. Complaints are received in writing or verbally from any source. The department may acknowledge in writing receipt of a complaint.
Each complaint is recorded in a log and assigned a number. Complaints received and logged include as much of the following information as possible:
	  1. 	 Case number,
	  2. 	 Provider name, address, telephone and identification number,
	  3. 	 Referral source,
	  4. 	 Date complaint received,
	  5. 	 Allegation.