I am with the OP on both counts. A lot of posters in the thread say it's no big deal, 1st world problem, preferences not guaranteed etc, but a king room is normally (in my experience) more expensive than two twins. If you purchase a product at a price premium, then yes, this is a legitimate complaint. I create a royal stink whenever I pay for King and then get fobbed off with twins and it seems to be happening more theses days... I think hotels are putting in more twins at the expense of kings. The front desk staff sounds, by all accounts, to be completely useless and accusing a customer of lying in the face of irrefutable evidence to the contrary is grounds for a complaint and a re-training/re-assignment opportunity.