Feedbacks, compliments and complaints are essential to maintain high standards of service. It will help the NDIS to evaluate and enhance their procedures and frameworks. It is through participant feedback that the NDIS Commission can recognise areas of improvement which will eventually influence the safety and quality of support and services delivered by the NDIS. The NDIS Commission is guided by the principles of integrity, accessibility, responsiveness, integration and appropriateness when it comes to the handling of complaints. Emphasising accessibility, the NDIS Commission has widely publicised the procedure on how participants may file complaints on their official website and in brochures. Participants or their representatives can make complaints about: