Failure to deliver on time 😢

I have placed an order coming from jhb 2 days ago, made payment for overnight delivery which I always do. Made sure I’ve placed order well in advance to ensure my parcel gets delivered by this morning. It usually gets delivered by 9am as it’s a product I order quite often from the same company. This morning my order has still not been delivered. I’ve contacted the courier guy to get in contact with the driver so I could meet up with him to collect my order as this now affect my work. Without this package I will not be able to do my job. Been calling the driver and his phone is off?? The package has been out for delivery since 6:33:40 am this morning. I’ve communicated this to the courier guy and their response was that he may be in an area where the signal is bad and asked for me to wait until 12 noon today? Really disappointed in their services as it looks like I need to cancel all of my clients for the day which will affect my job and my reputation is with clients.