Article 3,
Means and language for filing complaints
1. Crypto-asset service providers shall ensure that clients are able to file complaints by electronic means or in paper form.
2. Crypto-asset service providers shall ensure that clients are able to file complaints in:
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                               (a)  | 
                           
                               the languages used by the crypto-assets service provider to market its services or communicate with clients;  | 
                        
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                               (b)  | 
                           
                               the official languages of the home Member State and host Member States that are also official languages of the Union.  |