Nedbank Call Centre

I experienced a lot of irritation with Nedbank and Nedbank Call Centre. My Credit card statement dated 11 Sept - 10 Oct a amount of R30.43 + Vat ( additional Card Fee) was deducted twice. I need to mentioned that this is the 3rd time this year since i start monitoring my statement. First call to call center 18\10 reference ***8 according to consultant nothing wrong. Second call 22\10 *** consultant noted my query and submit it to credit card dept. After no response third call on 30\10 speak to Nicolene very helpful and advise that a person called Tasneem will call me in 10 minutes. Well a day later no call received. Previous time over R100 was deducted erroneously from my account. Are they really this *********** or is something else going on ?. Bottom line query still not sort out very POOR service.