Got 2 iPhone 6, and 1 iPhone 6 Plus under the Verizon Edge program on 03/13/15. I want to exchange the 16GB iPhone 6 Plus for the 64GB model 2 days after I bought them, but salesman told me since the Verizon Edge program with the iPhone 6s ended, I can't exchange the phone even if I pay the restocking fee. Explain please.