In order to ensure effective enforcement of the obligations laid down in this Regulation, individuals or representative organisations should be able to lodge any complaint related to compliance with those obligations with the Digital Services Coordinator in the territory where they received the service, without prejudice to this Regulation’s rules on allocation of competences and to the applicable rules on handling of complaints in accordance with national principles of good administration. Complaints could provide a faithful overview of concerns related to a particular intermediary service provider’s compliance and could also inform the Digital Services Coordinator of any more cross-cutting issues. The Digital Services Coordinator should involve other national competent authorities as well as the Digital Services Coordinator of another Member State, and in particular the one of the Member State where the provider of intermediary services concerned is established, if the issue requires cross-border cooperation.