This may be of use to someone...found on their Facebook page:
http://www.accorhotels.com/gb/hotels...-booking.shtml

Early Booking 30 Days in Advance, Up to 30% Off
The early bird gets the deal

Visit the Great Wall of China, soak up the sun in Miami, relax in the Lubéron, or discover the wonders of Seville, with a 30+ day advance booking. Be sure of your choice, and get discount prices on top destinations. This promotion is available on most of our brands: Sofitel, Pullman, Novotel, Mercure, ibis Styles, and more.