Annoying Standard Bank mobile app won't log me in

Standard Bank updated their mobile app(mobile banking app) last week of Feb. Since then, my profile got messed up. It's asking me to re-register for the services. I can't receive OTP anymore. I can only transact over the ATM. I'v no visibility of my accounts since I can not login. I have had to do countless trips to the Rivonia and Sandton branch to get help, and still nothing works. I am suspecting some of the transfers I made over the ATM did not go through either. Why the heck are they trusting technology if they cannot get the simple things right in the first place. They should fix this NOW