Information Update processes are useless

I have now been to the Lambton Branch twice to get my cellphone number updated as I can not receive any of my OTP's. Twice I have had to take off work and stand in a queue for almost an hour to fill in the paperwork to change my cellphone number. Something as simple as changing my cellphone number is at this point the BIGGEST INCONVENIENCE in my life. Is there nothing at this bank that functions properly. I have only had problems with this bank for the last few years now. My only option is to change banks