My white iPhone 5 came pre scuffed
Just a stern warning - check your white iPhone 5 carefully when unboxing it. Film the entire process from start to finnish if you have to. Mine came pre scuffed. This is a macro photo of the back chamfer edge (aka the polished edge on the aluminium body). As you can see, there's a substantial cut in the edge.
Waiting time for a new one is 10 to 30 days.