please help

A national bank having branches, offices, and customers in all major states of the country was recently informed of some security breach. The bank has sent a mail to all the customers for resetting their password. The process as per instructions form the bank is: 1) The customer will login to the account with current ID credentials. 2) The customer will be able to change the password with two step processes a) Choose three new security questions from a set of six security questions offered. b) After successful change of the password, the system will give the option to the customer to get information on each transaction nationally and internationally. The customer will choose the amount as to what amount and above he/she wants notification of the transaction (the notification can be sent $1.00 and up on any amount). c) On successful completion of the above steps the customer will receive a one-time OTP by text on the phone number on file, at this stage the customer will be provided with a choice to add a second number or decline the same and let the existing information be on file. The assignment is :- To write a Business Requirement Document covering the whole process To write a Functional Requirement Document from the BRD explaining in detail User Interface and User Interaction