Can’t get The Madodon to stresm on my iphone Paramount Plus Streaming app through Xfinity

I pay for Paramount+ Xfinity. I think it’s 1199 a month. I have no problem watching Paramount+ streaming program the Madison on my television. I cannot however get the same show on my iPhone Xfinity app I can get other recent shows such as the Rangers, etc..      What am I doing or wrong?