African Bank App Upgrade

After the upgrade of their app, I can't access my money using the app. I visited the branch two times and I am told my biometric fingerprint can't be verified but before the upgrade I never experienced any problems at all. At the branch I can't be assisted with with the online banking (USSD *120*225#) No one is willing to assist me. Is this customer service I get on the problem they created themselves. I can't pay for my bills because I can't transfer money from Pocket Savings to My World Account (savings account)