Game Flawless Disc

Gamestop Return Policy?
Hello I just bought Uncharted: Drakes Fortune and I liked the game, but I won. I used one and beat in 10 hours. GameStop Now I want to return, how can you tell if you have used. The Blu-Ray is flawless and free of scratches. I have the receipt and bought it 2 days. It's a PS3 game and its packaging I had not to remove to open the game.Can I get a full refund?
Normally a game is considered used if the celophane was deleted. This may depend on the employee that helps, but I doubt you will get a full refund. I'll probably give some credit to Store which equals less than what you paid for it. But that is just, right? After all, he played in the game. If you are unhappy with what they offer, try to sell on Ebay or Craigslist.