Lack of interest to resolve my issue

I got a terrible service from Nedbank Centurion and home loan department (call centre & assessment department), I restructured my home loan account since February 20th 2018, I want to transfer my money that I paid in advance, to my personal account, since then I didn’t get assistance. I can’t get my money because of the incompetence and lack of interest to assist me, for over two months. I am leaving this bank.