You can "demand" ask for anything you want. By my accounting, an apology is about all that is warranted and 10,000 points is far beyond reasonable. And 50,000 points is just a bizarre fantasy. YMMV.

Please be sure to let the GM and/or Marriott know that you were not a guest in the room, that the Platinum benefits were obtained by misrepresentation, and that you are "not at all apologetic" about your deception.