Sub request letter for change of mobile number respected sir it is humbly requested that i own current account number 000 123 456 in your bank i am also availing your mobile banking service i have recently changed my mobile number to 9contact number kindly update my new number in your record. These options may prompt you to link change mobile number in your bob account select the option of registration and provide your atm personal identification number pin tap on mobile number registration and select either new registration or change mobile number as you may desire. Write your sbi account number name and your state bank of india branch name or code next tick on change of mobile number field and write your new mobile number now write the date of submission place and finally sign the application form there is no need to fill the annexure field. The following is the request letter you may use for updating your registered mobile number with your bank if you have changed lost your mobile number sample letter of request to update registered mobile number with sb account from j ranjitham 105 4 chekkadi street kovilpatti 628501 tuticorin district to the manager tmb bank kovilpatti 501. Application for change in mobile number customer name customer id old mobile no new mobile no the above details would get updated only in all accounts fixed deposits held with the bank the details for credit card loans will not get updated customer