means a statement of dissatisfaction addressed to a crowdfunding service provider by one of its clients relating to the provision of crowdfunding services.
1.Crowdfunding service providers shall acknowledge receipt of a complaint and inform the complainant about whether the complaint is admissible within 10 working days of its receipt. Where a complaint does not fulfil the conditions of admissibility referred to in Article 1(2), point (a), crowdfunding service providers shall provide the complainant with a clear explanation of the reasons for rejecting the complaint as inadmissible.