The unresponsive RTMC

On 27 February 2024 I paid R1029 to RTMC - ENATIS (by mistake) towards the renewal of a car license. Evidently there is a private company, also trading as e-Natis for who the payment was intended. Since then I have sent e-mails to the RTMC to three different addresses, asking for a refund. Needless to say, I did not even get a reply from the RTMC. My question is: are the staff members too *********** to handle refunds, or are they deliberately ignoring my request?