The worst service from FEDEX!

What horrible service! A shipment for me coming from the USA disappears and nobody knowing where it is. One person telling me it is in Pretoria, the next telling me it is a Ghost Parcel and I spend almost an hour on the phone to Fedex, only to have them put the phone down on me when I demanded to speak to a supervisor. So, I send an email to one of the Agents, but she does not return my call. I paid the customs duty on the parcels and got confirmation from FEDEX that it was recorded, yet another agent tells me that it is not paid. Nobody at FEDEX seems to know what is going on.