Apple Retail cannot apply the IRU discount because the IRU discount is actually a list of many companies that offer a discount to their employees. Only AT&T's systems are capable of correctly applying the IRU discount to the contract at point of sale.
iPhone 3G: Purchase from AT&T Retail if you are eligible for IRU discount
This article is intended for AT&T customers who are eligible for an IRU discount and intend to purchase an iPhone 3G.
This article has been archived and is no longer updated by Apple.
IRU stands for Individual Responsible Unit. This is the term AT&T uses to refer to a "company discount" where the customer (or individual) pays for the bill on the account.
If you are a current AT&T account holder with an IRU discount, and you want to purchase an iPhone 3G, go to an AT&T Retail Store, and not an Apple Retail Store.
Important: Mention of third-party websites and products is for informational purposes only and constitutes neither an endorsement nor a recommendation. Apple assumes no responsibility with regard to the selection, performance or use of information or products found at third-party websites. Apple provides this only as a convenience to our users. Apple has not tested the information found on these sites and makes no representations regarding its accuracy or reliability. There are risks inherent in the use of any information or products found on the Internet, and Apple assumes no responsibility in this regard. Please understand that a third-party site is independent from Apple and that Apple has no control over the content on that website. Please contact the vendor for additional information.