"Excessive Deliveries"

I've been expecting a delivery today. I called at 16.30 and was told the driver would contact me but would definitely deliver by 18.00. I've now called again (17:45) with an estimated hold time of 15 minutes. I have now run out of airtime because of it. I went to track the parcel and I got the following: "We were unable to successfully complete the delivery of your parcel". No one told me, I had to go and check.

I work at a mine and have now sat here until 18.00 on a Friday with no further contact after being told the driver would call and let me know. The reason is apparently "Excessive Deliveries". I fail to see how this is now my problem if you cannot successfully plan their deliveries. If there is an issue, LET ME KNOW.

I have now been waiting since it was scheduled to be delivered yesterday already. I have had to cancel plans off-site for this. It is unacceptable, especially considering this is delivery of a specialised medication programme WHICH CANNOT BE MISSED. When will it be delivered now???? Do I have to sit at the mine all weekend???