Complete Incompetence

Worst Courier company I have ever dealt with. They collected a parcel from me on the 3rd of February. They delivered the incorrect parcel on the 9th of February. I ask why it takes 6 days to deliver a parcel from Johannesburg to Pretoria???? My client let me know that he received the incorrect parcel. After many emails to Uafrica and from them to Internet Express I contacted them on the 15th of February , after getting no response from them. They don't know what happened to my parcel??? This is ridiculous. My client bought an antique ice crusher from me, now Internet Express actually wants a cost invoice for an item purchased in the 70's!!!!! And now it will take 8 to 12 weeks to refund me R269. Is this how they treat clients that use their services regularly????? They lose your parcel and then refuse to credit you immediately. My client is livid and so am I. This is ridiculous and absolutely *********** service. What happened to my parcel?????