I called (the number is: 1-800-331-0500) and they said any refurbished phones would be on their web site. Customer Cares does not do "specials", only refer you to the web site. The only time they would perform a special is when there is a criticial problem with your phone, or in my case a contractual obligation they fumbled. Even then it is a case by case basis.
You'd do better going online and getting it through AT&T's site or an online vendor that can give you a bigger discount. That or eBay it.