Name change disaster and funeral cover nightmare

I have recently had my name changed at a Nedbank branch, all was fine until I received my statement two months later (I did give them a chance to get all the information to filter through the system), alas, my old name is still being displayed on my statements as well as on the Greenbacks app. In typical Nedbank style, I have complained more that once about this issue, yet absolutely nothing gets done about it. Nedbank, if you would like customer loyalty, how about a bit of caring, knowledgeable customer service? I also app**** for funeral cover in the branch, and apparently everything was fine when I left, however the policy couldn't be created due to 'missing documents' (received this information via SMS after leaving the branch), why didn't the consultant inform me that I didn't have the correct documents, yet went along with the application in any case. It feels like I spend more time in a Nedbank branch and chatting to the agents on live chat than any other bank that I have banked with sorting absolutely nothing out. Please assist if you would like to retain a customer who enjoys your niche products or else there are many other options.