Nedbank - poor service

My father passed away in July 2021. Unfortunately he held an account with Nedbank which i have been trying to close for the last 6 weeks. Despite me providing them with all of the documentation and visiting the branch 3 times, the account remains open and i have received no feedback at all. the original excuse provided by Nedbank management was that the person who initially helped me was a temp and only worked a couple of days a week! Does this mean that everything comes to a standstill because the person isn't there every day?? i then though that i would contact the Nedbank customer care line - this was an even bigger mistake, not only did the person that answered my call, not understand what i was saying but he had the audacity to put the phone down in my ear. After emailing their client feedback email address, i received an email from Cody Francis asking me who i had originally seen at the branch. After responding to him on the same day, i have heard nothing further (it is now almost a week later)!!!! Does anyone at Nedbank actually want to help customers? thank goodness i don't bank with them - shocking lack of interest from their side and very poor customer service.