Having the same issue with the Bell Media CTV app not working with Bell Medias Mobility service, Bell Mobility - just wrote them back "So then - when subscribing to Bell Media to watch the CTV App on my Smart TV, or CRAVE, which is free with my phone...
My issue is that i live in a remote community, no "Fibe" or internet so i I signed up to a 100MB phone package - all the streaming services ask to sign in through "your TV Provder" - but Bell Mobility is not an option - same issue with other APP's - ...