Yes, lots of facts unknown here. What was the arrangement with the property? Did the person book the rooms as a meeting planner? Were the charges moved to a single folio? Were the charges settled by a bill to the company or paid by CC?

T&Cs do call for the member to stay and pay to get credit for the room. A member can get credit for up to three rooms. The property can mess up and post all five rooms as individual stays. MR may audit the transaction and take back credit not due.