Courier It INCOMPETENCE!!!!!

I received an sms from this company on Wednesday 13 March 2019 informing me that I would receive my parcel within 1 or 2 working days. On Friday, 15 March 2019, I still hadn't received my parcel so I called the company to enquire about the delivery time. I was told that my parcel was still in the warehouse and would be delivered on Saturday 16 March 2019. I asked the consultant (Mpumi) to change the delivery address as I was not going to be at the initial delivery fot the rest of the month. He said he did so. On Saturday morning I called again to ask for a delivery time and I was told that the parcel was STILL in the watehouse and that the address was not changed. I changed the address online. The consultant assured me that my parcel would be delivered on Monday 18 March 2019. Again, on Monday I called to ask for an estimated delivery time. Yet again the parcel was not scheduled for delivery. I did the same thing on Tuesday (I spoje to Cicil this time) and was promised that the delivery would be done on Wednesday 20 March (today). Today, I called yet again to track the parcel. I spoke to Mpumi again and he said the parcel is not reflecting on their system. He asked me to give him one hour to go and look for the parcel in the warehouse and he would get back to me. This was at 13:28. I am still waiting for his call. He mentioned that my parcel might be lost. This company is clearly ***********. This is unacceptable. Whoever manages the consultants needs to be taking to task.