If you bought your iPhone before August 22, you may be eligible for an instant $100 electronic credit toward the purchase of products at the Apple Retail Store or the Apple Online Store. See the terms and conditions below for more details.
To receive your credit, follow these three easy steps.
Step 1: Identify your iPhone
To confirm eligibility, simply enter your phone number and iPhone serial number in the fields provided.
Step 2: Enter your access code
You will receive an SMS text message on your iPhone containing the access code to redeem your $100 credit. Enter your phone number and your access code in the fields provided to generate an electronic store credit.
Step 3: Get your $100 Apple Store credit
You will receive a $100 electronic store credit to purchase products at the Apple Retail Store or the Apple Online Store.
Apply for your credit at http://www.apple.com/iphone/storecredit/Where to Buy