BAD CUSTOMER SERVICE - UNRESOLVED ISSUE TO DATE!!

On 17/01/2020 while at the branch (vanderbijlpark), they could not close my acc due to the overdraft facility fault and advise me to contact their overdraft facility dept which I did & spoke to a lady who indicated that she doesn’t know/understand what is happening and she will forward the matter to their business analyst to investigate. I requested her to keep me informed of the findings and sadly I had to keep calling her every time only to find no new information/feedback. I got tired of calling her & complained to her that she needs to give me feedback because this matter is withholding my account to be closed with their bank. I finally asked her for her Manager's number and she gave me her "team leader's" numbers which I have been calling and the phone just rings a couple of times & then nothing (just dialling tone all the way). So I think she deliberately gave me the wrong number which is adding to my frustrations because she is not providing me with any feedback and my issue is still outstanding. Since 17 Jan till now there’s no resolution. What kind of customer service is this?????