[Your Name]
[Your Address]
[City, State, ZIP Code]
[Email Address]
[Phone Number]
[Date]

[Bank Manager’s Name]
[Bank Name]
[Branch Address]
[City, State, ZIP Code]

Subject: Request to Block ATM Card

Dear [Bank Manager’s Name],

I hope this letter finds you well. I am writing to request the immediate blocking of my ATM card associated with my bank account at [Bank Name]. Unfortunately, I have lost my ATM card, and I suspect it might have been misplaced or stolen.

I am providing the necessary details below for your reference:

– Account Holder’s Name: [Your Full Name]
– Account Number: [Your Account Number]
– Registered Mobile Number: [Your Registered Mobile Number]
– ATM Card Number: [Your ATM Card Number]
– Date of Loss: [Date of Loss]

I am deeply concerned about the security of my bank account and related transactions. To prevent any unauthorized access and potential misuse of the card, I kindly request you to block the ATM card immediately.

I understand that blocking the card will restrict any further transactions from it. Once the card is blocked, I will visit the nearest branch in person to apply for a new ATM card and complete the necessary formalities.

I would also like to request a written confirmation of the ATM card blockage to be sent to my registered address and email for my records and to ensure that the action has been taken promptly.

If there is any additional information or documentation required from my end to facilitate the card blocking process, please inform me, and I will promptly provide the necessary details.

I apologize for any inconvenience caused and thank you for your prompt attention to this matter. I trust that the bank will take appropriate measures to ensure the security of my account.

Please feel free to contact me at [Your Phone Number] or [Your Email Address] for any further communication regarding this issue.

Thank you for your cooperation.

Yours sincerely,

[Your Full Name]
[Your Signature if submitting a physical letter]