Nedbank poor poor customer service

My late father left Nedbank as the executor of his estate in his last will & testament. We approached the New Redruth Branch to duly hand over all required paperwork & documentation. The individual that assisted us was Christopher Arallapan. Our meeting was not great, as he was not the friendliest of individuals & extremely rude on our second visit. We handed over all documentation on February 10th & we were informed that an executor would be assigned to us no later than February 15th. By 19th February, we started to chase up to be told that Christopher had now been booked off ill. We escalated the concern to the Branch manager, who informed us that they would follow up & revert back to us. We are now in March & to date, there ahs been hardly any communication from Nedbank regarding this matter. The sum of money that they charge to wind up an estate is ****************, considering that they are doing next to nothing. I would strongly advise NOT doing your last will & testament through a banking institution, especially NEDBANK.