Frozen Account for 4 months

My business has been frozen for over 4 months now and I have been to several branches to resolve but no help. Everyone is told to call the ***** centre and the people handling my case (Nkuna / Kim) do not pick up my calls. Sometimes I am told I must wait a week to unfreeze account but nothing. I don't know who to go to to help now. Bank is frustrating me. I have recieved soo many references and sent countless emails to the team but nothing. I will attach a reference of an internal complaint I logged on their site which states 48 hours to call back but no call nothing from bank.