Online order canceled without explanation

I placed an order online yesterday, 03/11/24, in the morning for pick up at Wonderboom; my order was confirmed, and payment is done. Last night, around 22:04, I received an sms followed by an email saying the order was delayed, then at 23:00, an email stating that the order was canceled and I would be refunded. How can an order be confirmed to be canceled? Makro is being unfair to its customers. We place online orders because is convenient for us. I'm patiently waiting for a call back from the Head Office complaints department for an explanation. I spoke to Mapule, and she will investigate the matter as to why the order was canceled, as the store has stock.