I have a ring scratch on my 360 game?

It is gta 4,and i want to know if gamestop will buff out the ring scrathes on my game or will i have to go somewere else?
IM not screwed the same thing happend to my modern wrfare 2 disk,and i got it fixed at game crazy,and i moved to another city so i dont know any stores all i see is gamestop,so yeah im not screwd
 
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