Went to the ATT store today with receipt for Penny's 4g I-Phone that was purchased for $499 within the 14-day window of reduced price on the 8g phone and was given $200 credit to my card plus tax. No questions, no hassle.
I will get a $100 Apple in-store credit for my phone that was purchased outside the 14-day restriction.
Not bad. Better than a kick in the shins :>)
Cheers! Ray