Makro fails to make promised refund for cancelled order

I placed an online order on 25-1-2019. I was charged R1795 on my credit card. I phoned Makro customer service the following day to cancel the order as the equipment was not suitable for my purposes. I was told that it was no problem as the order had not been dispatched yet, and that the money would be refunded to my credit card in a few days. I checked my statements on 8-4-19 and the payment reflects, but I can find no refund. It has been more than 2 months. I phoned the customer services and asked for an explanation. I was told someone from finance would contact me. Nothing happened. I phoned again on 11-4-2019, still no contact from Makro. I phoned again on 15-4-2019 and once again I was told the matter has been escalated to the finance department and they will contact me within 24 hours. I am still waiting. I emailed their customer care address on 16-4-2019 - no response after 2 days. Makro has demonstrated they have no intention to refund me, they are simply ignoring my repeated requests. Makro online can clearly not be trusted, their promises are worthless.