Here are 8 producers offering a selection of their Champagne under 15 euros: 1. Champagne Jean Courtiller A family-run estate in the village of Colombé la Fosse in the Cote de Bar. The Cuvée Tradition and Demi-Sec are priced at 14€. The Cuvée Prestige stays under 20€. Orders can be made online with delivery by…