Hello, I purchased the unlocked sim free iPhone 6S plus phone and I had to have it replaced at the Genius Bar at the Apple Store yesterday and after they put my original Verizon SIM card in the replacement phone, my verizon account now says "non-vzw device" I called customer support and they don't know what to do about it, I already took the SIM card out and restarted the phone and put the SIM card back in, I ever restored my phone as a new phone and it still has the error, what should I do? Apple does not know why this is happening also, please help me. Thanks