Well, I came across this. Do you have hard tickets?
HARD TICKETS vs. TICKETFAST E-TICKETS
In recent years, the print at home TicketFast ticket has become more common and it does have some advantages. TicketFast tickets can be e-mailed to you in a .PDF format for you to print out at home on your computer. This is great if the show date is close … you won’t have to pay for express shipping. If you lose your e-tickets, you can just print out more copies. But beware, because this flexibility has a major downfall.
TicketFast tickets can be printed out over and over and over again. If multiple copies of a TicketFast ticket are printed, only the first one to be scanned at the concert venue will admit entry. All the other copies will be worthless. An unscrupulous seller could potentially sell the same ticket to dozens of people. This is why it is important to deal with reputable, established sellers on eBay. Most sellers who sell TicketFast tickets are honest people and are selling legitimate tickets.
To avoid problems with TicketFast tickets, I would ask the seller if he is the original purchaser of the ticket. When Ticketmaster sells a TicketFast ticket, the buyers name appears on the printout. If you are buying your e-ticket from someone who bought it from someone else who bought it from another guy who bought it from their cousins girlfriends brother, there is NO WAY to verify it isn’t one of those bad duplicate copies. Stick with buying TicketFast tickets only from the person whose name appears on the ticket.
The regular old hard ticket has some great advantages. They are difficult to counterfeit, and you have peace of mind regarding their authenticity right away when you receive them. Hard tickets are much nicer to keep as a souvenir or give as a gift. The major drawback is that they are almost impossible to replace if lost, so treat your tickets like cash and put them in a safe place. Lost tickets are quite common, because in many cases you buy them 3-4 months in advance of the concert, and during the hectic chaos we know as everyday life, they disappear.