Sometimes you need to call back 3 or 4 times. I did it on chat last year. Took 3 times. But there were some other issues that happened, so they gave it to me for free.
I just got off a chat with them a few minutes ago.
I got them to reduce my DTV bill by $60 a month for a year, and no contract agreement.
They would not give me NFLST free at this time, I guess since they just gave me the $60 reduction. However they said to check back in September as there may be some promotions on it at that time. Right now there is not any.