Substandard Services from Skynet Worldwide Express

I have ordered items online and my parcel arrived at the Skynet Durban branch on the 17th of April. My parcel "apparently" went out on delivery and returned back to the branch undelivered. No phone calls had been received to advise me of the delivery. a Note was posted on the tracking portal that due to unforeseen circumstances, my parcel was not delivered, and delivery will now take place the next day. I have requested feedback on both the customer service email address as well as the Whatsapp line, without any feedback whatsover. I called Skynet on the 25th of April and after 30 minutes holding to speak to an agent, were told that they promise delivery will take place on the 26th of April. I waited the entire day for the driver and no delivery took place. I made another attempt to find out why on the Whatsapp Line as well as the Customer Services, again to my surprise, no feedback. I then called Skynet again and held the line for 32 minutes. Eventually I managed to speak to an agent who contacted the Durban branch for feedback only to be told my parcel is still there and they don't know why it hasn't left for delivery. I asked for my query to be escalated, and I was redirected again to the inbound call line of which I was 46th in the que. The service I have experienced with Skynet Worldwide Express has been absolutely disappointing. I cannot request a refund on my parcel as I need it to be delivered for me to request refund / cancellation. Absolutely poor service!!!