I just filled out the online complaint form, and stated that I was looking to purchase a ticket yesterday and was quoted a price and it said it was the "Last day to purchase at this price." Today I went back to the website, and the flights were exactly the same and the price quoted was also exactly the same, and further the website stated that it was the "Last day to purchase at this price." Therefore, United is trying to pressure customers to purchase fares by deceptively stating it is the last day to purchase a fare, but the fare is still available the next day.