poor customer service yet again

My physical address on my FNB app and online banking are different.When I called Khanye at Customer care, I was told to go to the bank in order to change it. I think that this is a ridiculous request, to waste an hour or more just to change something that should have been corrected by FNB. I urgently required a bank statement today but could not submit it as the address details were incorrect. I would like FNB to fix it. What's the point of having the app and online banking when we are required to visit the bank in order to change details????