Frustrated by Non Response from Nedbank

My name is Modikwe Rammopo and my Nedbank cheque account number is ***. An amount of R6000 went through my account on the 21st of July 2022 with a reference number "SARS Third party appointment". I contacted Nedbank customer care and they referred me to Nedbank insurance because they indicated that it shows that the money went to the insurance division through an account identified as "GBS Accounts receivable and lease payments". Nedbank insurance could not trace the transaction so I contacted Nedbank ***** division who referred me to Nedbank special services. Nedbank special services asked me send an email to ***. I emailed *** on the same day but never received any response. I sent a second email to *** on the 26th of July and so far there is still no response. I went to the Rosslyn branch and Pretoria North branch on the 22nd and 23rd of July respectively and the consultants in both branches could not trace the transaction in question. Ms Sonette Vos of Pretoria north tried to assist and went as far as escalating the matter but she was also referred to the GBS Accounts receivable and lease payment. This department could not help when I called them on the 21st of July 2022. I am now very much frustrated as I cannot trace exactly where the money is gone. May you kindly assist in tracing this transaction and the actual recipient of the money.

Kind regards, Modikwe