Nedbank ****** fees which should not have occurred

At the beginning of April I paid up my credit card in full and requested for it to be closed. I was asked what to do with my Greenbacks at which stage I asked for Makro vouchers and was assured the account would be closed shortly after. After 2 months of me calling every single week from Australia my account was finally closed however fees had been taken off my account after my initial request to close the credit card. I have called in numerous times where I have been assured that the fees will be refunded. I even spoke to a manager called Malcolm whom I have emailed but still have no refund. It is now July and this has still not been resolved. Nedbank have now officially ****** my money and if I do not get a response within the next week I will report this matter to the ombud and Nedbank will be in trouble. I have also asked to lay an official complaint on various occasions but have heard nothing regarding this and assume it has not been recorded. I am highly disgusted, this is not how you treat clients.