The California Department of Insurance (aka the California Insurance Commissioner's Office).
If you are having problems with an insurer you can contact the department at 800-927-4357 if you are within the state of California or 213-897-8921 if you are outside of the state of California.
You can also use their contact form, which can be found here:
If you are having problems with an insurer you can contact the department at 800-927-4357 if you are within the state of California or 213-897-8921 if you are outside of the state of California.
You can also use their contact form, which can be found here:
https://interactive.web.insurance.ca.gov/contactCSD/ContactUs.jsp