I actually just got it working by going into tv provider in my iphone settings like mentioned above. But instead of signing out in, i just unselected telus tv+ with the slider. Then opened the app and signed in and voila.
Isnt working for me either. I even followed the steps above and when I get to sign into the app I put my info in. It then thinks for a while and eventually seems like its done but then im actually still not logged in…. Been days now