Just go and re-buy the game in that case. In case you bought the game long and didn't return it as soon as you found out it was damaged, than it's your fault. You shouldn't pay again since the product that they sold you was damaged, so you should get a new copy for free. NNo, you don't need to purchase it again, you need to return the copy to the shop and ask for another copy, this time one that works.
