I just went to the Amazon site. Granted I am within the 30-day window so I don't have that fuss but I did go into the "Contact Us" link for the return rather than go through regular channels. I noted that I don't have the original boxes for any of the items, in this case a case, screen protector (one of which is on the phone itself so the box only has one), and a desk charger.
Labels are already available for printing, but, the rub is that the consumer has to pay for return shipping, which is going to reduce the refund.
The question will come up as to whether or not Amazon accepts the returns without original packaging..not that the items could be used anyway.