Originally Posted by VA1379

This restriction is somewhat common for awards if a property has higher demand for one type of room over another based on bedding. It sounds like the king rooms only have stay anytime availability while the doubles room have standard availability (based on the 100 % extra points required for the king room).

The GM is correct in that you will not be allowed to switch room types. If you are paying for your stay, the rates would usually be the same (or the king room might cost a little more if demand justifies a higher price). It would be possible to switch rooms if you were paying for them out of your own pocket.