You were given correct information. You are able to use the giftcard towards the purchase of a phone, including the iPhone 4S. However, any device needs to be in stock when using a giftcard to buy as the funds are not withdrawn from the giftcard until the device would ship, leaving the funds open to use on other purchases. A credit card works the same way, as the card does not get charged until the phone ships. I understand your eagerness to get such an awesome device!
Thank you for your patience!
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