Judgment of the Court (Second Chamber) of 29 July 2024.#Bundesarbeitskammer and Others v HDI Global SE and MS Amlin Insurance SE.#Requests for a preliminary ruling from the Bezirksgericht für Handelssachen Wien and Nederlandstalige Ondernemingsrechtbank Brussel.#Reference for a preliminary ruling – Directive (EU) 2015/2302 – Package travel and linked travel arrangements – Article 12 – Right to terminate a package travel contract – Entitlement to a full refund of any payments made for the package – Unavoidable and extraordinary circumstances – COVID-19 pandemic – Article 17 – Insolvency of the travel organiser – Security for the refund of all payments made – High level of consumer protection – Principle of equal treatment.#Joined Cases C-771/22 and C-45/23.