HEEELLLPPP!!! ANTHEM OF CO. COVERAGE.

Has anyone used anthem of co? They are saying that they will only pay for 7500.00 for WLS. I am thus stuck wondering what to do next. Do I get a loan for the remainder, or do I hire a lawyer to fight for them to cover the complete surgery? I have been to the pre-op meeting through penrose hosp. and will be having dr. fedorak complete the surgery In co. Spgs, but dont know where to go from here... Any advise would be helpful! Thanks... Julene