Poor Poor new internet and mobile banking

Well, recently ABSA, the most useless bank in RSA, upgraded and changed their mobile app for banking. This created chaos all the way, not nothing works. I dried countless times to log in, and nothing happens, it gives errors and "cannot connect to server". I delinked my mobile from the internet site on laptop and now even more sh%^&t prevails. I follow the online steps to manage/link new device and then the mobile app says the device is not linked and the online actions refer me back to manage devices and nothing happens online or mobile app. ABSA has finally when down the drain.