Can't watch BTN through Fox Sports app

When I try to use the Fox Sports app to watch BTN, it says I am not subscribed, despite the fact that I have a full package of Comcast channels and can watch BTN on my TV. 2 and a half hours on the phone have been completely unhelpful. Is there a known issue?

Now I've been on hold for 30 minutes. Total silence. No music. No, "we will be with you shortly". Wonder if I got hung up on.