NO RESPONSE ON CHANGING RESIDENTIAL/POSTAL ADDRESS

I would like to say I am really disappointed with Nedbank for their poor service delivery, I have been trying to change my residential address or postal with them which I was instructed by Hub store since I had moved to the new place in January. But I haven't received my statements from May this year. Unfortunately no one is saying anything to me if I needed to provide them with more information. I went to Gallaria Amanzimtoti Nedbank and I was given a form to complete twice but still no feedback on that