Discusting Service from ABSA Bank

I have been trying from November last year to get my account placed on hold and to pay off my overdraft. After numerous calls, emails, emails to action-line, visits to branches etc. I have been advised today that had the bank put the account on hold when it was requested, I could have paid off my overdraft and the amount I wanted to pay would have been acceptabe. However since this was not done, I now have to pay an addiional amount for charges going off the account as debit order bounced. Action line is suposed to be the department who investigates the complaint, this is not done, I have logged the same complaint with them on a regular basis montly. The case is not looked at properly and closed. I have been advised that they tried to phone me however I did not answer, If this was the case why did you not try again. When I ask to speak to a Manager or someone in a senior position I am told I can speak to the supervisor, who is never availabe. I am now at my wits end, I am really desperate and need help in orde to reach someone at ABSA who can make decisions and asssit me.