When I ordered my iphone from apple which is on a family plan I was asked to put in a number to check upgrade eligibility. When I get the phone delivered to my house and plug it into itunes, is it automatically going to set up my iphone to the number i used to get the discounted price or is it going to ask me to enter the number I want to use, and have been using with my iphone now? (there are multiple iphones on my account)