They sell fake tickets online
They sell fake tickets online. After you pay, they send you a confirmation and then tell you the ticket is no longer available on sale. You have to pay $300 to $400 extra to upgrade. In my case, I lost $424 to them because I won't pay extra. It's a scam and I've reported them to FTC. Don't buy any tickets from these scammers unless you want to loose your money.