Payment service providers and crypto-asset service providers shall respond fully and without delay, including by means of a central contact point in accordance with Article 45(9) of Directive (EU) 2015/849, where such a contact point has been appointed, and in accordance with the procedural requirements laid down in the national law of the Member State in which they are established or have their registered office, as applicable, to enquiries exclusively from the authorities responsible for preventing and combating money laundering or terrorist financing of that Member State concerning the information required under this Regulation.