I have been poking around the CPUC. That may be the best path. They have a telecom subcommittee. A campaign of political pressure and/or ditching them for other providers could work. Now, AT&T is trying to capitalize on this with an ad campaign claiming no fees:
HOWEVER, I understand ATT does charge data cap fees for home internet so, unless they have scratched those, this ad is also BS. On the cellular side, they have recently hiked fees on grandfathered unlimited plans.