iPhone is without a doubt one of the most anticipated gifts during the holiday shopping season, so that Apple offers to its customers exchange their older models of apple for an entirely new models.
This is undoubtedly an interesting proposition from American manufacturer, to participate in the promotion we should make a destination to the nearest Apple store and ask for the "iPhone Upgrade Program" or you can read about the promotion in e-mails sent by the company to its customers.
The company allows exchange for iPhones 4 or later models and in that exchange we can get even $320 of credits to be used in this promotion. It is worth mentioning that the promotion is only available in the United States.