Exchanging iPhone

[jack66]

I got the 16gb iPhone 6 since I was being a cheapo.
But after a few days with it, I regret not getting the 64gb version.
I ordered it online from at&t, would it be possible to walk into an at&t store and exchange phones?
Thanks.

 

[ZBoater]

You have 14 days to return it, and they may hit you with a restocking fee.

http://www.att.com/esupport/article.jsp?sid=KB411934&cv=820#fbid=e-Mk8bKGnjJ