Missing DVR option

I have had my Xfinity service for almost a decade. Maybe longer. I know how to use it. I record shows on my DVR every night or my very early morning shows. And I watch them with a cuppa coffee when I get up. This morning, I could not, because the app on my TV, my iPhone, and my iPad was missing the option for a DVR. I’m not saying just my recordings were missing, I’m saying the button that says DVR at the bottom of the screen when you open any of the apps, is gone. I tried to explain this during hour and a half conversations with customer service this morning to no avail. I now have an appointment for a technician to come out this afternoon.  He’s going to look at my app and say Yep it’s missing. I’m really not happy right at the moment. I paid too much for this service to have something like this happen.