I want the black iPhone 5 how can I trade it?

I have the white iPhone 5 and I want the black one. I don't know how long I've had it I just want to kno if there's anything I can do to trade it. I have an apple store close and I bought my phone from atat and i don't know if I can change it. Just please help me make an excuse I don't mind lying because my iPhone is 100% good never dropped

Why does it matter what the colour of your iPhone is?

Sorry did you choose the color? The white one is better black vs white right now I think white is winning so I prefer what you get. Trust me white is so much better I have it and it is awesome I'm so glad I have the white one!

Black is ugly! I prefer white one, I don't know why you wanna change it.

and I believe that you can't change it in the apple store, because your phone is ok as you said.