I too have got the runaround on receiving a $300 gift after connecting with Dish. I have been referred to numerous phone numbers only to be referred to yet another phone number. I was told 13 weeks ago that I should receive the gift card in 6 to 8 weeks! As of this date, still no gift card. In fact, today I called once again to check on the status only to be told they even have no record on file!!! If Dish does not intend to honor the offer, they need to quit offering it.
Did you happen to have the exact promo code available for reference during your inquiry? Have you already visited http://mydishrewards.com to see about tracking the process, as well.