[Your Name] [Your Address] [City, State, Zip Code] [Email Address] [Phone Number] [Date] [Bank Name] [Bank Address] [City, State, Zip Code] Subject: Fraudulent Charges on Client's Account — Dispute and Request for Investigation Dear Sir/Madam, I am writing to bring to your attention unauthorized transactions on my client's bank account, held with your esteemed institution. My client, [Client's Name], has recently discovered a number of fraudulent charges on their account, which they did not make or authorize. I kindly request your immediate attention and prompt action to resolve this matter. Account Details: — Account Holder's Name: [Client's Name] — Account Number: [Account Number— - Date of Discovery: [Date of Discovery] — Transaction Period: [Transaction Period] Description of Fraudulent Charges: 1. [Detailed description of the first fraudulent charge]: [Amount], on [Transaction Date]. 2. [Detailed description of the second fraudulent charge]: [Amount], on [Transaction Date]. [Add more descriptions as required] My client was not involved in any of the above transactions, and they were not aware of the unauthorized activity until they reviewed their account statement. As a responsible banking institution, I expect your full cooperation and assistance in resolving this matter promptly. Immediate Action Requested: 1. Freeze the account: I kindly request that you immediately freeze all activity on the account to prevent any further unauthorized transactions. 2. Investigation: Initiate a thorough investigation into the fraudulent charges, aiming to identify the parties responsible and hold them accountable for their actions. 3. Reversal of charges: Once the investigation confirms the fraudulent nature of the transactions, I request that you promptly reverse the unauthorized charges from my client's account. 4. Secure the account: Implement additional security measures to prevent future unauthorized access and ensure the safety of my client's financial information. My client expects a swift resolution to this matter and a full refund for the fraudulent charges. Furthermore, they request regular updates on the progress of the investigation and actions taken to rectify the situation. Please provide a written acknowledgment of this complaint within [specific timeframe]. Please find enclosed copies of the relevant account statements indicating the fraudulent charges for your reference. Should you require any further documentation or information, please do not hesitate to contact me at the provided contact information. My client and I believe in the professionalism and integrity of your institution and have full confidence that you will handle this matter promptly and efficiently. We anticipate your immediate intervention and cooperation. Thank you for your prompt attention to this matter. Sincerely, [Your Name]