How can we frustrate you

I have relocated to the UK. I cannot get OTP as my number has changed. I cannot change my cell number as there is no such facility on online banking. I cannot use the app as it will not recognize my verified SA ID number and wants to send a OTP to a number I no longer have. I cannot call the help center from the UK because the AI cannot hear me properly and keeps cutting me off. Please change your motto from 'How can we help you" to "How can we frustrate you for 5 hours!"