On Demand - Encore error

I am a new subscriber to Digital Preferred. I have had a problem with Encore On Demand since the first day (it's been 7 weeks now) where I receive an error saying I am not subscribed to the package. I receive all of the Encore channels fine and HBO and Starz On Demand work fine as well. I have made at least 10 calls to Comcast, used live chat once and had 5 appts (2 were where no tech ever showed up). They've tried many resets and sent new signals multiple times. On appts where a tech actually shows up - each time the tech leaves saying it is a network problem and I am given a potential date by when it should be fixed. That date arrives, no fix, I call them, they say they have no record of a network problem and that I need a tech to come out. The live chat rep recommended that I swap out the cable box. I went to Rockville and swapped my small box for a large Motorola one - same problem.

The actual error doesn't have a error code it simply says - Error retrieving data - call your cable operator to subscribe to this package.

The latest they say is that they need to program a code for Encore On Demand into my box but that they don't know what the code is. <sigh> It's not 6 - as they've already tried that and that is something for the Encore channels as well as On Demand - and the channels work fine. Any ideas or suggestions on how I can find out what code it would be for Encore On Demand are welcome.

Thanks! </sigh>