Apple Branded Equipment
Apple branded equipment is covered by a 14-day return policy and must be returned based on the original point of purchase. AT&T stores will only accept returns of Apple Branded Equipment if the items were purchased at an AT&T store, web site, or kiosk location. AT&T will not accept returns for items purchased at Apple stores or at Apple.com. If the Apple branded equipment is returned unopened and in the original shrink wrapping, it will be refunded back to the original payment method. Opened Apple branded equipment and all refurbished Apple branded equipment that is returned within 14 days will be subject to a 10% restocking fee. All products must be packed in their original, unmarked packaging including any accessories and manuals that shipped with the product.
I just looked that up, doesn't really explain the 14 days when you received it or on the 14th day of your purchase.