Purchased a seat upgrade while doing my flight order. They refunded me $300 and said no seats were available. Then, when I contacted customer service, they told me no seats were available. I said, what are you talking about? There are at least 7 seats and there were more when I booked. Oh. Yeah. "Those seats may not be available because people did not pick their seats yet" I said, the system lets me pick and pay for the seat upgrade for those 7 seats at a price of $862! So, either the seats are available for A LOT more money, or you are lying. Agent tells me that I can book at the $862 upgrade price. So, what the hell, United. This is clearly a bait-and-switch tactic. This is the second time you've tried this with me. So, it's definitely not a new thing. If you offer the upsell, you'd better make good on it. No wonder why people are pissed when they get on the flights.