I ran into the same problem. Sort of. As mentioned above, Rogers shipped me the wrong iPhone model. Unlike any other phone they sell, where they ship you a replacement and you ship them back the phone for return, Rogers will not ship an iPhone replacement without first getting back the original phone. Kind of a pain if you ask me.
It only took me about 72 minutes to finally process the return. Now I'll just cross my fingers and hope they ship the right iPhone!