Re: Old iPhone trade in for iPhone 6?

If the gift card is not available for weeks after trade in, how is this a free iphone 6? What can the gift card be used for because it cannot be used to pay for the iphone 6 if that is the case. If you do an instore trade-in will the gift card be issued immediately?  Do you have to trade in and upgrade at the same time (wait for gift card to upgrade and reactivate older phone in the meantime) ? Doesn't seems like that great of a deal if you can only use it to pay for overpriced in store accessories. Can it be used to at least pay your monthly bill? Hopefully that can be cleared up because the advertising of a FREE Iphone 6 has the potential to be extremely misleading.