I keep getting the following error message / page when I try to sign into my mobile account:

Are you the primary account holder?

Only the primary Xfinity account holder for your household can log in to Xfinity Mobile at this time. If you are the primary account holder, please verify your credentials again.

I've been on the phone with custom support for both internet and mobile department transferring me back and forth or hanging up on me. I'm very frustrated.