Application for leave to adduce new evidence / Real Estate Agents Act 2008, s105, s111 / appeals reconsider evidence and material provided to the Committee / admissibility / new evidence must be credible, not able with reasonable diligence to have been provided to the Committee, cogent & would have an important influence on the outcome / overriding consideration is the interests of justice / relevant whether admitting new evidence would require further evidence or cross-examination / not an opportunity to conduct case differently / HELD / complaints process provided multiple opportunities to produce evidence / all new evidence could have been provided to Committee with reasonable diligence / recordings of post-conduct conversations do not contain concessions as to liability & would not have important impact / generic information leaflet not material / better evidence available about auction conduct than letter from witness & would have no impact / application declined