Does anyone know if you can swap a black iPhone 5 for a white one?

I've had the phone for about 3 months.. Decided I really don't like it in black but no one I know will swap, is it likely that the apple store would swap it? It does have a few problems, such as freezing and restarting itself a lot but I never felt it would be good enough reason for them to swap the phone for a new one!