Complaint about an Iowa polygraph examiner

(No identifiers are listed. If you recognize yourself here, correct the situation for the future. Courtesy of Polygraph Examiners Of America, www.peoa.US )

Client paid $350 in cash. Examiner said NDI (pass) on all relevant questions, yet Client has proof as to the opposite on one. Examiner will not discuss this with Client, now refuses to provide the audio tape or charts for review by another examiner.
APA member: YES
Recent past complaints: NO
Examiner gender: M

Summary per Client: She says Examiner tells "You obviously don't trust me so I'm not going to discuss it".