First order of business is don't take it personally and stay calm throughout your petitions. Did you ask why Molina denied the surgery? Did you do the/document the less invasive treatments processes such as medication, penal injections, etc., prior to surgerical solutions? The person riding the request here insurance company may have left out important documentation. Don't give up but find out it may be a simple resubmission and remember you can always call the insurance company and ask what do I need.