Opening an account: Checking or savings account

I am disputing Truists decision to deny my fraud claim regarding the $15000.00 transaction. I did not knowingly authorize this transaction. I believe I was the victim of fraud after being deceived by an individual who misrepresented themselves and caused unauthorized activity on my account. Truist denied my claim, stating that the transaction was authorized, but I disagree with that conclusion. I am requesting that Truist provide all of the evidence used in its investigation, including copies of any checks, signatures, IP address or device login information, recordings, and any other documentation relied upon to determine that the transaction was authorized. I believe I acted in good faith and reported the fraud as soon as I became aware of it. I respectfully request that Truist conduct a thorough review of my case and reconsider its decision based on all available evidence. I also request reimbursement if the investigation shows that I was the victim of fraud.