What will happen if Adrian Gore face verivication does not work on the banking app are we getting the same treatment.

I have a Discovery Bank account and use all the benefits. I recently upgraded my phone and had to reload the app. The app does not recognise my me on the biometric face verification. It just say to me unknown error has occurred. It does not give an error code

I phoned the Discovery bank twice they put me through to the ***** department. I only had one interaction with a call centre person "Johannes that promised how he will sort this out. That was Tuesday it is now Thursday. My log in is still not sorted out.