Write a letter to your headmaster asking him for permission to use the library after school hours.

     Registration of mobile number in your bank account.

                                       

   To
   The Bank Manager.
      (Your bank name)

   Subject: for the registration of
                        Mobile number.

    Sir,

          I (your name) is a patron customer of your reputed bank. As my number is not registered along with my bank account. I connect get the regular updates from the bank. Hence I request you to kindly update the following number along with My account number given. Thank you.


  Mobile number-(....................)
  Saving A/C number-(....................)
     Your faithfully.
       (Your name)