my reception on Verizon in NYC IS HORRIBLE! I activated it with the SIM card that was Already in the max! Can i just take the new activated SIM card and put it in my old iPhone 6+. And then send the max back to Verizon without a SIM card?? Is that ok? Or will Verizon charge me another 50 bucks for NO SIM card in the phone? Lol. Thanks in advance.