T&C (
https://all.accor.com/loyalty-progra...ditions-en.pdf) 7.2.2 says:
".. Expenses for Member accommodation in a room in the hotel and,
if applicable, for one other room at the same hotel on the same date (for a maximum of two invoiced rooms), provided that (i) the Member is staying in one of these rooms and that (ii) the second room is notoccupied by another Member. Note: The Member may be able to earn on accommodation
expenses for both rooms, but the number of Status Nights is based only on the Member's room."