6. Importers who consider or have reason to believe that packaging which they have placed on the market is not in conformity with the applicable requirements laid down in or pursuant to Articles 5 to 12 shall immediately take the corrective measures necessary to bring that packaging into conformity, to withdraw it or to recall it, as appropriate. Importers shall immediately inform the market surveillance authorities of the Member States in which they made the packaging available of the suspected non-compliance and of the corrective measures taken.