Poor customer service

Last week Tuesday I called ABSA bank to ask them to close my credit card. I couldn't get hold of the closure department and I was advised by the credit card consultant, that the closure department will get back to me in 3 to 5 working days. It's now the 6th day and no one has got back to me, I honestly don't understand if that's the stunts they are pulling so that we don't close our credit cards. Come month end I will be charged intrest on the credit card when I have requested it to be closed