Fedex – Phantom delivery

I ordered a very important piece of equipment for my business and was told that the driver would deliver it to me between 11-1. Well I was at my place of business at about 9 in the morning and was there all day. I waited and waited and 3pm rolls around and still no delivery. I called the fedex office and gave them my shipping number and they had the package listed as failed delivery. It was noted that the business was closed. How can that be if I was there all day.