Article 132(1)(f) of Council Directive 2006/112/EC must be interpreted to the effect that the exemption provided for in that provision relates only to independent groups of persons whose members carry on an activity in the public interest referred to in Article 132 of that directive and that, therefore, the services supplied by a group whose members carry on an economic activity in the area of financial services, which does not constitute such an activity, in the public interest are not entitled to that exemption.