1. Member States shall have adequate means of supervision and investigation necessary to implement this Directive effectively and shall ensure that service providers supply them with the requisite information.

2. Member States shall cooperate with other Member States; they shall, to that end, appoint one or several contact points, whose details they shall communicate to the other Member States and to the Commission.

3. Member States shall, as quickly as possible, and in conformity with national law, provide the assistance and information requested by other Member States or by the Commission, including by appropriate electronic means.

4. Member States shall establish contact points which shall be accessible at least by electronic means and from which recipients and service providers may:

(a) obtain general information on contractual rights and obligations as well as on the complaint and redress mechanisms available in the event of disputes, including practical aspects involved in the use of such mechanisms;

(b) obtain the details of authorities, associations or organisations from which they may obtain further information or practical assistance.