Cost-of-living Benefit Service Double click to activate the map National Solidarity Fund Cost-of-living Benefit Service 8-10, rue de la Fonderie L-1531 Luxembourg Luxembourg Postal address :B.P. 2411 L-1024 Luxembourg Phone : (+352) 49 10 81 999 (only in the morning) (+352) 49 10 81 999 (only in the morning) avc@secu.lu Cost-of-living Benefit Service Path to Cost-of-living Benefit Service Show on map