COMMACK - A Commack teenager claims he lost $850 in a ticket promotion sponsored by New York Giants player Terrell Thomas. Matthew Mayer says he received an e-mail saying he won two tickets to the Giants game against the Eagles in December. But when the Commack High School junior went to the stadium, he says there was no sign of the tickets.Mayer then discovered that the tickets were left under the name Matthew Christopher. Christopher is Mayer's middle name. Mayer ended up calling Thomas' representative, who told him that he would be reimbursed if he bought tickets to the game. Five weeks later, Mayer says he still hasn't received the check for $850. "I love Terrell Thomas, I still do," Mayer says. "It kind of hurts a little bit."The company that handled Thomas' ticket giveaway promotion told News 12 Long Island Mayer will be getting a refund.