CheapTickets.com cheaptickets.com Orbitz Insane refund policy and crappy customer service, Internet

I'm in the military, US Marines, I booked my tickets in August 20, 2013. Recently I found out that we are being sent to the Philippines to help with humanitarian aid and I won't be able to make my flight. The flight was booked for Christmas and New Years. I called cheaptickets to see if they would be able to cancel it due to military reasons. I come to find out they do not support the military at all. They offered to give me a credit so I can use toward future tickets but they want to charge  $150 airline ticket change fee + $50 cheaptickets ticket change fee +the price difference between the old ticket and the new tickets. 

I understand if it's some other reason but they want to me this crazy price for just because my orders got changed and I have to help out another country. Not only that but I brought tickets for my wife and my two daughters also, the price of the tickets came out to $1,545.36. That's for 3 adults and an infant. They want to charge me an additional $200 dollars a person so that's $800 that I'll be paying extra. I can't believe I get screwed over just for serving my country and this US company and United Airlines refused to help out. I will never order from cheaptickets again, and they think they can get away with it because they already have my money. Now I will have to contact my credit card company and see if they can help me out. Never again!