MacBook Air trade in?

hello! i'm sorry if this question has already been answered, but i mistakenly purchased a MacBook Air instead of the MacBook Pro that I originally was set on purchasing. I only opened it once (before Iirealized it was the wrong model) and I did not update, add, or open any software or anything of that nature. all i did before replacing it in its box was open computer itself whereupon it activated. what i'd like to know is, am i able to return/trade in this computer for the MacBook Pro? many thanks :]