Found on the website:

"For every €10 you spend, you will earn 80 Compliments Points at Sofitel hotels throughout the world.

As soon as you have accumulated 20,000 Compliments Points, you can convert your Points Compliments® Accor hotels gift vouchers worth €200 (valid on week-ends) each on the price of your stay at 180 Sofitel hotels and more than 2,500 Accor hotels.

For 24,000 Points you can also ask for a Compliments® Travel gift voucher valid every day in the whole Sofitel network."

http://www.accorhotels.com/gb/fideli...actu_acc.shtml