My iPhone was just stolen. It was on prepaid. I got another iPhone, but I had to purchase it on monthly because it wasn't available as an unlocked phone. I want to switch it to prepaid again. I understand I will have to wait 3 months to do this. I have a new number. What is the best way to switch to prepaid and keep my prepaid balance and add on boosters? Do I have to pay the base plan amount on my prepaid stolen phone to keep my account active and be able to transfer my boosters after 3 months?