How do I change my Xfinity TV single sign-on account?

I recently moved and was forced to create a new Xfinity user account. I'm trying to log out of my current Xfinity account and log in with my new account. In iOS, I am able to go into "Settings", click "TV Provider" and "Remove Provider". However, when I try to add back my TV Provider, I click Xfinity and it automatically logs me back in with my old account info, not even allowing me to try to sign in with my new account info. I've done a bit of research, and it seems that this happens with all TV Providers, if you are not signing on with a completely new/different TV Provider- which I don't have.