Trying to locate the whereabouts of my parcel

A parcel was sent from Italy to Cape Town on 17 December 2019. I have still not received the parcel. Have been in communication with the local postal office but they are only able to see that the parcel is due for arrival in Cape Town. They had tried calling and emailing the person who would be able to assist in seeing more from their side but no response. I also emailed customer service and complaints with no reply thus far and not able to through to a call agent. It's been over a month. Why can no one assist me on this matter!