SA Post office EMS service pathetic and downright useless

I would really like to know how a parcel sent through the SA Post Office EMS (express mail service) costing a lot of money and being assured that it will take 3-7 days from posting to delivery, can take 21 days just sitting at JIMC (Johannesburg international mail centre).? What are post office staff doing that it takes 15 days to reach the JIMC or until scanned in and then still just sit at JIMC 21 days later. Tracking shows still geld at outward exchange, ETA anytime between 25.4 and 15.5 to be delivered. Why are we using EMS and paying excessive costs when it takes days and weeks to leave SA. Once it arrives at its destination arrival airport it rakes just 1 day to reach its final destination. In SA it takes weeks to leave our s****s. Pathetic, no wonder the S!A post office is bankrupt