NO DIRECTION WITH PACKAGES, CALL CENTER IS USELESS!!!

I have been waiting on my EXPRESS delivery for more then 3 days now. I ordered from cotton on using the express option which takes 1-2 business days. When i track my package it shows on the DPD website that the package failed for delivery and when i check the address they have an incorrect suburb mind you on the cotton on website the address is correct. on the 11th of April i made phone calls to the DPD call center trying to correct the address and I was assured that the address was updated and delivery will be done by 6:30PM, that did not happen. I sent emails requesting my package however that has not helped, i also made more calls but there is no direction. I was told that they cannot communicate with the driver, please tell me how that is possible?! I am utterly annoyed by this service, i sent them a facebook message with no response. I am hoping that Cotton on stops using dpd services as i have seen that I am not the only person unhappy with them.