Nedbank incompetence at its best. Nedbank must fall

So in Feb 2022 I had an issues with Nedbank where the reference number that I have been using for the last 2 years to make payments change and I was not notified. They handed me over due to non payment without even picking up a phone. I called them sent them proof of payment got a new reference and the matter was sorted. 6 months down the line guess what nothing has been fixed now I am handed over again for the same very reason. Claiming I haven't paid since December. So once again I'm stuck in the same position. How can 1 company be so freaking useless . How can a financial institutions admin in such shocking state.. I am sick to death of this place. There is not a month that goes by without an issue