Closure of business account

I have been standard bank customer for 15 years, and I am really disappointed on the service that I have received currently. I went to Lime acres branch on the 15 October 2014 to close my business account *** and settled the account I was told the account is closed but I was never closed. on the 14 March 2015 I went to Kuruman branch to inquire I was told my problem will be attended to on the 18 March 2015 I was given service request number ***, but still the account was not closed. I went again on the 20 th March found the business banker who sent the email to Elna in postmasburg to close the account still today the account is not closed . on the 10 april 2015 I went to the bank again still nothing the business banker Chris called Elna she promised she will give me a call and give me the progress after few minutes still now after two hours no feedback from her, I am tired of the going to the bank and stand on the queue and not get any service, I was not aware that it is such a hard work to close the account. I think it will be better to close all my accounts and leave standard bank. in the mean time the account is accumulate monthly bank charges .