Non delivery

I was notified by Dawn Wing on 08 August 2018 at approximately 11h00 that my parcel was on its way, I then proceeded to wait for the parcel, which never came, when I contacted Dawn Wing the indicated that the delivery vehicle had been at my office, however the delivery man failed to notify me of the fact that he had arrived, he also failed to knock on the door or in any way attempt to notify me of his arrival, when I pointed this out to the lady at the call centre she indicated that the driver does not have the responsibility to notify me of his presence. This is by far the worst service I have ever received from a courier company and I would advise anyone against making use of their services.