An impending class action will allege that the national disability insurance scheme is discriminatory – unlawfully excluding people who are over 65. The lawyers behind the case say this could cost the federal government more than the robodebt settlement and permanently change the way the NDIS operates. In this episode the proposed lead plaintiff Helen Bonynge describes how being lock out of the NDIS has changed her life, and reporter Paul Karp breaks down the legal arguments behind this class action, and how it could transform the NDIS