Nedbank poor handling of a will/estate

I am writing to complain and express serious concern on the service and handling of an estate/will. My father passed away in June 2016 and we have yet to receive a conclusion on the estate. Patrick (The Estate Officer) said to us that the person who goes to court resigned and the position is vacant that is why this process is taking this long. Why should day to day business stop for several months because Nedbank is failing to replace a staff member and we have to resort to countless phone calls and emails for a service and communication that should be handled professionally? The management team has not attempted to assist in solving the issue and the customer service received is very poor. It is sad to go through a loss and have to fight with such a reputable brand with service that they pride themselves in. We have asked for a time frame on feedback with no response.