DSV service disappoints

Hi, I took an upgrade with MTN and delivery outsourced to DSV. DSV contacted me to make arrangements for delivery, which should have taken place yesterday afternoon between 14:00-16:00. I called the DSV call centre to follow up at around 15:00 and apparently the driver was in Pretoria area. The delivery never took place. I didn't receive a call notifying me that my delivery would not place as per arrangement. When I called this morning, the customer service team tried to make new arrangements for delivery, which I refused to do, as it will probably fail again. What is the point of making arrangements if DSV don't stick to these nor have the courtesy to call the customer to inform them of delays? Kindly sort this out and ensure that I receive my phone today.