Capitec not responding to my complaint

As a Capitec Customer for the past 8 years I am disgusted with the Bank's Complaints Department. I emailed them on 12 Nov-19 with a complaint regarding their Constantia Branch and my Credit Card Application. No response. I called them on 14 Nov-19, got a reference number. No response. I called again on 20 November, NO RESPONSE. Yet again on 26 Nov-19 and still NO RESPONSE. Unbelievable arrogance. What point in reference numbers, nobody follows-up,