NO DELIVERY/POOR SERVICE

My delivery address changed which I updated with the call centre before my delivery went out. When I checked up on my delivery the day it was supposed to arrive I noticed that the two invoices had different addresses -1 to my current address and one to the old. I called again and asked them to change the old address, the call centre agent told she changed the second address and asked the driver to turn back to give the other delivery to the driver that had the correct address and my order would be delivered the next day.The driver apparently tried phoning me twice (less than 1 minute apart)while I was on a business phone call, not even 5 minutes later I tried calling the number back several times but there was no answer. I phoned the courier service back later (this afternoon)and asked when my delivery would come as I will be leaving soon. She contacted the driver and he told her that the address on the parcels were not complete and that I did not answer so he left. I think that this is pathetic service, he could not wait 2 minutes to call back or answer 5 minutes later, also the fact that the address is not complete is not my problem I confirmed the address several times.