Synchrony Financial Credit Card Complaint

Synchrony Financial Credit card department,

Billing disputes Tennessee

My Walmart store card was lost and used without my permission. I did not participate or receive any goods or services so I filed a fraud claim with Synchrony Bank and I received a fraud investigation form and was told it would be investigated. I completed the form and sent it in and received a letter confirming the fraud had been investigated and they found my fraud claim to be valid after they researched it and looked into. So I received a letter saying that they had researched it and found in my favor and all fees and charges had been credited back to my account there was an adjustment done for like - and something or like - and something for the fraudulent charges and I paid the remaining amount that was due on the account, now all of a sudden after telling me that I was not responsible after they investigated and even sent me a letter to confirm I was not responsible after investigating they came back in to my account and charged the charges back to my accounfter they told me that I was n't responsible. So I called and spoke with an account manager who is now claiming there is nothing she could do. Why did you send me a letter confirming I was not responsible after you investigated and now all of a sudden you are saying that I am. Why send me a letter saying I was n't responsible and then say I am. I have cooperated and done everything they asked me to do.