Switch my iphone for different color?

So I have had my iPhone 4S for about 2 months now with Sprint. And it's black but I want a white one. I know since its past 14 days I can't switch the color with Sprint. Could I? Or is their another way? If not ill just buy a like total phone covering case.

Sorry, there's no other way, its like getting a new phone so that's the reason why sprint can't switch it. Only 2 choice now is to buy a new phone or get a white case. Check this link > http://www.amazon.com/...005UC13P4/