Accor is offering regular members discount of 10% plus 3x reward points for stays in South America this summer (Yes, it’s in Jan… Lucky them.)

Only one stay is eligible for the offer. However, there seems to be no restriction on the number of nights. If you are staying in Brazil, Chile, Argentina or Colombia, you can earn a lot of points with this offer. Use code 9967 for phone bookings.

It’s not clear whether multiple rooms are eligible for the bonus points or not. But it seems so. T&C says - 

For the purpose of this offer, a stay is one (1) reservation made by a Le Club AccorHotels member for one or more rooms in a participating hotel. For the avoidance of doubt, a reservation made for more than one room will therefore be considered as only one (1) stay.