Discover Credit Card Complaint

Discover Credit card department,

Billing disputes California

Discover emailed me about fraud activity on my credit card. I received the email and contacted them when I got the email. It was determined that the charges were fraud and card was not in my possession. My last known whereabouts were at a - -. I was within rights of notifying discover of my fraudulent unauthorized charges. they instructed me that there is a - - liability on fraud charges. i thought everything was ok until -/-/- where i called them on status of dispute and they said they were denying the claim and that i will be billed. i was like why was n't i notified and why is it denied? they said because i had fraud on my account earlier in the year? i did not authorize those charges, i did not do those charges. i asked what im suppose to do to? they said i need to file a police report for them to reconsider. i went straight to the police office. they actually were n't even too happy i was there because they felt i was wasting their time? one officer said he was taking the report as a courtesy. 2 weeks later discover denied it still. i then asked the - police department about it and they told me that discover fraud department are not the law enforcement and they are in no position to be acting like it. by treating me like a criminal, and acting like they were the police really upsets me. i did everything they asked and even went to the police for help, i am running out of options?