Tracking number not working

Hi. I sent a parcel on Thursday, 20/09/2018 from phalaborwa to Polokwane (same province) but I haven't been able to track it on their system. This is very disturbing because I have no idea where my Parcel is at this stage. I

I called their offices more than twice since Thursday and the agents were not able to trace my parcel on the system. I need answers