Nedbank

In respect of telephonic calls disconnected at the call centre, we had no choice to send emails to Nedbank. As various reference numbers and incorrect amounts were sent via sms we had enquired who it pertains to. Nedbank is not providing the information requested in respect of the different amounts and reference numbers rather states our account information. Email reply to them on 11 May 2019 but no reply from their department in respect to the matter. They are still sending sms message concerning the matter but no clarity provided to our request on email. When will the administration be correct?