Appeal against Registrar rejecting complaint / complaint adviser wrongly assumed visa expiry dates of appellant and wife were the same, resulting in the wife becoming unlawful / Registrar rejected complaint on basis it disclosed only a trivial or inconsequential matter / Immigration Advisers Licensing Act 2007, s442, s451, s54 / Code of Conduct 2014, cl1 / Liston v The Director of Proceedings [2018] NZHC 2981 / adviser breached cl1 by not identifying correct expiry date and notifying wife / accepted situation stressful / minimum threshold for sanctions for public protection / mistake mitigated by apology, rectification, admission of mistake to INZ, offer to reimburse lost wages, no adverse consequences & migrants bear an obligation to ensure they are aware of visa expiry dates / minimal delays caused to residence application / other losses not particularised by appellant / other complaints / Registrar found delays did not warrant formal process / appeal rejected