Yes. You can switch providers anytime. California law requires insurers to refund any unused premiums -- Goodcover can help you switch and get the refund you deserve.
Breaking up is hard to do - Goodcover will do it for you. When you sign up, there is a place to provide the needed information so that we can email (or fax!!) the necessary documentation to your old provider.
Email firstname.lastname@example.org for further assistance. You will not be penalized for switching providers nor should you have a coverage gap.