Disappointing service

I paid off my vehicle account in May 2023 but my credit life policy was not canceled, so I need ABSA to submit a paid letter with the effective date. I had been requesting that since the 27th of September, today 12 Oct at 11:48 I called and spoke to Moleboheng who said she's going to send. I decided to call again at 13:00pm because I had not received anything, spoke to a very rude Siboniso Khumalo who did not want to listen to my query and raised his voice at me. I think the agent should be moved from customer care department because he clearly does not have the skills to listen