I bought a 2 Note 7s. One for me and one for my spouse. We have since switched back to our Note 4s and want to return the Note 7s for a refund. The local Verizon stores won't take back the phones. They say that Verizon will send return boxes but we haven't received any. Since I'm not purchasing another new phone to replace the Note 7 how do I request boxes to return them for a full refund?