Disappointed with Standard Bank Gold Credit Card Division's Lack of Response

I am deeply disappointed with the service provided by Standard Bank Gold Credit Card Divisionregarding my request to close my credit card account and receive proof of closure. Despite my clear instructions and expectations, I have not received any communication or documentation confirming the closure of my credit facility. It is unacceptable that Standard Bank has failed to address my request and has resorted to using incorrect contact information(Mobile numbers). The outstanding amount is settled on my credit card and was done before the due date, I expect prompt action to close the account and provide me with the necessary documentation.