DHL ARE ***** AND CHEATS WORST COMPANY EVER

DHL ARE THE WORT COMPANY EVER TO DEAL WITH!!!!!!!!! They do not contact their clients, they do not give any tracking or any information even though there are delays on a shipment. No one from their office even cares. I'm currently on hold for 22 minutes and still no answer. I have a package that was supposed to be picked up on the 22/01/2019 and be delivered to Zambia, the shipment still has not been even collected. Another shipment was supposed to be delivered to Mauritius on the 28th before 12:00 which we paid extra for...........this shipment is still in JHB!!!!! Not one person has even thought of contacting the customer to inform them about delays. We have a technician currently in Mauritius waiting for the package so he can do his job because we decided to believe the delivery date stated on the online booking system. The online portal stated that the shipment will be delivered on the 28th its the 30th and the shipment is still in JHB..... I have been speaking to Susan All**** the Export Entry Clerk and Rushail the Export manager and they cannot help me, I have no idea who I need to speak to in order to get this shipment moving!