Annoying callers

Service absolutely disgusting. My account with Nedbank was handed over to them however they have not sent any correspondence for two years now I have cancelled their debit order and arranged with Nedbank. Since the month of March they have been calling me and I keep telling them the same thing and the agents are extremely rude. They refuse to listen whilst they have incorrect information. These people do not update their systems they don’t update what the customer tells them and they phone non-stop and still have to explain the same thing over and over again. I’m very disappointed angry and frustrated at the same time as they are very unprofessional especially the agent that called me last Clementia who decided to drop the colony just because I was rectifying what she recorded as incorrect when I told her.