[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date] [Credit Card Company Name] [Credit Card Company Address] [City, State, ZIP] Subject: Report of Lost Credit Card Dear [Credit Card Company Name], I am writing to inform you that I have unfortunately lost my credit card issued by your company. I am deeply concerned about the potential misuse of my card and would like to report it as lost. I kindly request you to take immediate action to suspend any further transactions on my credit card account. Cardholder Information: Name: [Your Full Name] Credit Card Number: [Last 4 digits of your credit card number] Expiration Date: [MM/BY] Date of Loss: [Date when you lost the card] I have attached a copy of my identification document for verification purposes. This document contains my photo identification and details such as my full name, address, and date of birth. Please let me know if you require any additional information to authenticate my identity. To ensure the security of my account, I have already taken the following steps: 1. Contacted the local authorities and filed a police report regarding the loss of my credit card. 2. Informed the major credit bureaus — Experian, Equifax, and TransUnion – about the incident to prevent any fraudulent activity on my credit report. 3. Checked my recent transactions and identified any unauthorized charges. I have made note of these charges and will provide them upon your request for further investigation. I request that you promptly block any transactions on my credit card to minimize the risk of unauthorized usage. Additionally, I kindly ask you to send me a replacement credit card as soon as possible, along with details on any necessary steps I need to take for activation. Please send all correspondence regarding this matter to my current mailing address mentioned above or contact me via the provided email address or phone number. I am available for further verification or assistance if required. I sincerely appreciate your immediate attention to this matter as it is vital to prevent any financial loss or unauthorized charges. Furthermore, I have been a loyal and responsible cardholder for [duration] and trust in the exemplary customer service provided by your company. Thank you for your prompt action in addressing this issue. I look forward to your prompt response concerning the status of my lost credit card and the necessary steps to safeguard my account. Yours faithfully, [Your Full Name]