Frustration !!!

Why is so difficult to communicate with ABSA bank? I have not been able to close my accounts even after numerous emails confirming the payments of the various amounts requested and proof of payment sent on numerous occasions, I am harassed on a daily basis. The email correspondence I have sent is never rep**** to and the email threads are not kept. Instead, I receive calls and when I advise of the history of my dealings, I am promised an investigation which never happens. I have to deal with a different person each time. What then was the point of giving me the status of a "Private Client"? Customer service is a foreign concept at ABSA.