Close down my account as requested...

You know i really do not understand why FNB is giving me a runaround with regards to closing off my account. after countless efforts and a string of useless reference numbers i still have not managed to have them closing the account. Now they have billed me for a reversal of a debit order and the account fees. I wrote them a letter on the 20 October 2020 and still nothing has happened. Can someone please assist....FNB sucks struu CAS-***-Y9S2P0 CRM:*** CAS-***-T6P0G2 CRM:*** CAS-***-J1L1T5 CRM:*** CAS-***-M0N6K5 CRM:***