iPhone 5 Body with Chipped Paint
iPhone 5 Body with Chipped Paint - can i get replacement
iPhone 4, iOS 5, This is Iphone 4S
I would imagine it's assessed on a case by case basis.
It can't help to try at your local Apple store but I wouldn't hold my breath.
Keep in mind if you did manage to procure a repalcement - it would be a remanufactured handset at this point.