In the final weeks leading up to Christmas in 2023, the District Court of Amsterdam referred a set of questions to the CJEU (DC Amsterdam, 20 December 2023, ECLI:NL:RBAMS:2023:8330; in Dutch). These questions, if comprehensively addressed, have the potential to bring clarity to longstanding debates regarding jurisdictional conflicts in collective actions. Despite being rooted in competition law with its unique intricacies, the issues surrounding the determination of online damage locations hold the promise of illuminating pertinent questions. Moreover, the forthcoming judgment is expected to provide insights into the centralization of jurisdiction in collective actions within a specific Member State, an aspect currently unclear. Recalling our previous discussion on the Dutch class action under the WAMCA in this blog, it is crucial to emphasize that, under the WAMCA, only one representative action can be allowed to proceed for the same event. In instances where multiple representative foundations seek to bring proceedings for the same event without reaching a settlement up to a certain point during the proceedings, the court will appoint an exclusive representative. This procedural detail adds an additional layer of complexity to the dynamics of collective actions under the WAMCA.