Nedbank not helping in this covid time

I have had enough now. I am being send from one person to the next. I app**** for an overdraft due to the covit situation but due to my financial difficulty in 2006, - note how long ago this was, it is now 2020.- I was told I have "old debt" that needs to be " investigated". During 2018 I was approved for vehicle finance then there was no problem but now I am told call this person then Call this person and it carries on like this everyday still with nobody doing anything. Nobody is interested to assist me and I have a business to run and wages to pay. I know that I have nothing that needs to be investigated if I had then why did I get vehicle finance in 2018. I was told this investigation takes time so wait it out it is obvious that the people at Nedbank doesnt give a damn as long as they can tell you to wait or we will get back to you as soon as they put the phone down they forget about you and move on to the next call and smooth talk the next client and so it carries on. So is there someone out there that has advice