fustrated

l opened my account in 2018 .then 2022 l started receiving sms on my email and online app saying my details have changed ,l called the bank to block my account as l did not change anything ,A lady from fnb called back a few days later saying she will arrange for my funds to be released then they close the account ,cause how do they create a an account under an existing account cause someone brought an id to their branch ,,,,l just want fnb to do their research ,reverse my funds and close that account ..l am tired of following up on this ..