They will ask you to go to Walmart and purchase a Green Dot pre-paid visa and load $500 to purchase the iphone. Once you have the card they tell you to call them and give them the activation code. AT that point they call green dot and transfer the funds off your card an onto there card and you are out the money you loaded. They use pre-paid cell phones. Once you call them with the activation code they shut down that cell number they called you on. The guy that answers the phone is Jason.