mydish com/epixgift

I received a free offer from dish in the mail. I received a free offer from dish in the mail. I was instructed to enter mydish.com/epixgift as the search can't redeem it.
How do I add EPIX to my DISH subscription? EPIX, EPIX 2, and EPIX 3 are available to DISH subscribers as part of Blockbuster @Home or The EPIX Package.
I have received my AT&T bill combined with internet service, but NO CHARGES FOR MY DISH SERVICE for the past 3 months. I know AT&T disolved the 
Reply. +Artem Russakovskii But does it support AC3 audio yet?. Margaret Poore. Feb 3, 2014. +. 0 1 0. Reply. mydish.com/epixgift. Kartheyan 
DISH replied · 3 Replies · 4 hours ago. Remove. Cleo Flanagan I love my dish internet service!!! 3 · October 21 at 7:12am. Remove. View 13 more comments