Cancelling an online order is impossible - beware!!

I ordered and paid for an eco picnic bench online. When I order it the price was R4399. The next day the price dropped to R3699 so I tried to cancel my order from the day before and order it again at the lower price. I spent a whole weekend phoning the call centre, which is the only way they offer to cancel an order, and get a refund. After multiple calls I eventually speak to a call centre agent who assures me my request for cancellation has been logged. About an hour later another lady phones to me to assure me my order has been cancelled and that I would be refunded within 14 days. Two days later I get an email telling me my order is being prepared. I log on and check my order and the status is still 'Processing,' I phone the call centre again and speak to somebody who confirms it has not been cancelled but he can see records that I been phoning and have requested a cancellation but it has not been actioned. He assures me again that he will escalate my request to cancel. I have just checked again, 4 days later, and my order is still not cancelled and my money is still not even nearly being refunded. Now the country is in lockdown for 21 days and I can just imagine that this will be their excuse for still doing nothing to cancel and refund. That will make it a month later and they have done. Ithung to cancel and refund my money!!