Blocked account due to their fault. Don't have access to money

I have two current accounts and two investment accounts with Nedbank. I received notification to update my personal information in terms of the Fica act which I did physically in the branch in April. Off lately I kept on getting messages that I need to confirm my personal info to prevent my two accounts being blocked. I went on to the app and followed prompts to update which update were acknowledged by the bank. A week ago and once again I received the same messages that if I do not update my info my accounts were going yo be blocked within a month. As I opened my app I saw my accounts were already blocked. 5 phone calls and a physical visit to the Zevenwacht branch....my accounts are still blocked. Debit orders must go off and the My Goals account needs to be replenished to have enough funds for the debit orders. Promises of phone calls from the bank....nothing. Nedbank proud themselves of great customer service. They can rather be proud of neglecting their customers and telling them lies just to keep them quiet. I am a pensioner of 75 years old and to be shunted around like this is not on.