NEDBANK DECEASED ESTATES DEPT. IS BEYOND USELESS

I am the Executor of a deceased estate. I have been trying to close the deceased's account held at Nedbank since July 2021. Notwithstanding sending all the compliance documents, they never ever respond. Only after escalating or logging a complaint, they will send an email with a request for additional document/s due to the initial documents having expired as a result of the delays on their side. I have phoned the call centre; emailed various people, immediately sent whatever they ask for. All without success. The account has not been closed and the money has not been paid to the Estate Late banking account