Fnb not taking clients serious

Hi, so last year around November I went to Kyalami branch and asked one of the consultants to close my cheque account and the gentlemen told me that this couldn't be done as he had to send email to my branch and they will let me call me. So I stayed the entire December without any response from FNB. I then went to Northgate brach in January and again the consultant told me the account couldn't be closed, I have to go to kyalami or send an email to ********** which I did on the 19th of January till today nobody has responded to my mail. Alright I then called their customer care and was told to go to kyalami. Today I went to kyalami and was told that they can't close the account which is frustrating cause it is accumulating interest. Can someone please assist me to close this account please.

Frustrated client