Helpline e-Invoicing Double click to activate the map Helpline e-Invoicing Hôtel de Bourgogne - 4, rue de la Congrégation L-1352 Luxembourg Luxembourg Phone : (+352) 247-72155 (+352) 247-72155 info@efact.public.lu Helpline e-Invoicing Path to Helpline e-Invoicing Show on map