2months later and still trying

I logged a complaint in December for a account closure sent in June that was not actioned Sandiselwe Mazibuko is the agent who is currently dealing with the matter. I was told that the account is cancelled and and was due a refund 8 business days later and no refund, I feel as the customer it is not my duty to follow up on a complaint that I have logged but yet if I don't ask I wont know and O get ridiculous excuses as to why it has taken so long for this person to respond to me which to me is non of my concern, if you going to be out of the office someone has to take over. Once again I requested some feedback yesterday and I still did not get any response. All I want to do Is close my account and get my refund is that to much to ask, can I request that someone who knows what they are doing give me a call A.S.A.P.