10. Manufacturers shall, upon a reasoned request from a national authority, provide all the information and documentation necessary to demonstrate the conformity of the packaging with the requirements laid down in or pursuant to Articles 5 to 12, including the technical documentation, in one or more languages which can be easily understood by that authority. That information and documentation shall be provided in electronic form and, on request, in paper form. The relevant documents shall be made available within 10 days of receipt of the request from the national authority. Manufacturers shall cooperate with the national authority on any action taken to remedy any case of non-compliance with the requirements laid down in or pursuant to Articles 5 to 12.