JPMorgan Chase Bank Account Or Service Complaint

JPMorgan Chase Bank account or service department,

Checking account Deposits and withdrawals Massachusetts

I accidentally left a check made out to myself inside of a rental car. Reported it promptly to Chase, and even though it was made out to myself, and had a forged endorsement, Chase and the depositing bank allowed it to be cashed by the scammer. Chase closed the investigation, within a week, BEFORE processing my affidavit or even attempting to investigate, due to " Lack of Care '' on my end because I left the check somewhere. The police department assigned a Detective who is actively looking for a suspect, and wants to prosecute, yet Chase just dismissed the claim, even though it clearly is a case of check fraud, and I reported it to Chase the same day I realized the check was missing.