Can I exchange my 5 day old unopened wireless beats for a different colour?

I bought a Macbook the other day, and got the student offer that came with free wireless beats. I chose black and didnt realise there was rose gold ones which I love!! I was wondering if there was any way I could exchange them for the rose gold version. They are unopened, untouched, still in the bag. I have the email with the reciept on and it was also less than I week ago that I picked them up.

Thankyou!🙂