As stated in the Terms & Privacy Policy, all sales that are placed on the site are final. All customers are required to check a box that says that they agree to this policy at the time of checkout. This policy is in place because once the seller confirms the order that you placed, there is a legally binding contract for those tickets. Sellers have a strict, "all sales are final" policy. There are no exceptions to this rule. Tickets are not exchangeable, because tickets on the site come from many different sellers and it may not be an even exchange.