My wife and I just returned from Vegas last night. We were in Vegas from Dec 16 to Dec 22. We each used three MyVegas rewards. We both had the two free buffets for Aria rewards. We used hers on Wednesday, December 18 without issue. We tried to use mine on Friday, December 20 (identical reward). We went to MLife desk and they entered it on my players club card. At the buffet, the cashier ran my card and said we owed an additional $42 dollars as they said it was now a "special" buffet with a higher price above and beyond what the credit on my card for the "normal" buffet was. We returned back to the MLife desk to complain. The people there knew nothing about a "special" buffet. I retrieved my MyVegas printout from the MLife desk. It clearly indicated "two free buffets" and it listed black-out dates which the reward could not used. 12/20/13 was not one of the blackout dates listed. I asked to speak with an MLife manager and was told she was on vacation all week. We went back up to the buffet to complain to the buffet manager. Without looking at it, he tried to claim the dates on the MyVegas printout indicated that the reward could not be used. Not willing to back down, I pulled out my pocket calender and started "X'ing" out all the December blackout dates listed on the MyVegas reward printout in front of him. 12/20/13 was not X'd out. I gave him the papers and asked him to show me where it indicated that 12/20 was a blacked out date. He could not find anything. Next, he claimed he was going to be nice to us and only charge us for one buffet (instead of honoring the two FREE buffets). Again, I was emphatic that it was unacceptable and told him we would leave and spread the word that they were refusing to honor the rewards. He finally relented and honored both. This whole frustrating ordeal took almost an hour. While we were going through this ordeal by the buffet cashier, we witnessed 25-30 people walk away after the cashier informed them of the price (about 50% of the total that got into line). The week before Christmas is the slowest week in Vegas. The hotels drastically reduce room prices and give more comp rooms away to us low rollers more this week than any others in order to get some business. So why would the chose to almost double the price of an already overly expensive buffet during the week where they should, if anything, be cutting the price in half? When we did finally get to eat, the selection of the "special" was IDENTICAL to to the selection of the "normal" one we had two days earlier. There was noting extra to justify the doubling of the price. Lessons learned from this ordeal: Always print out your MyVegas reward e-mail that has all the terms and conditions on it and bring it to Vegas with you. Stand your ground whey you are in the right and they try not to honor their own Terms and Conditions.