HOW TO WRITE A LETTER TO BANK FOR REQUESTING NEW ATM PIN? From A. Ajay, 31, KK nagar, Madurai, Tamil nadu. To The branch manager, Canara bank, Madurai branch, Madurai, Tamil nadu. SUB: REQUEST FOR NEW ATM PIN Respected Sir / Madam, I am having a savings bank account in your bank. My SB a/c number is 1278969689689. I forgot my debit card ATM PIN. I am facing difficulty in getting cash from ATM through my debit card. Through this letter , I kindly request you to mail me a new ATM PIN to the address provided above, as soon as possible. Thanking you! Yours truly, A. Ajay. Date : 02/12/2017, Place: Madurai.