International Parcel Gone Missing

Dear Sir / Madam<br> <br> I order electronic goods from a supplier on the 28 made the biggest mistake shipping via SA Post office. The parcel was cleared on the 05/01/2015 and sent to Tshwane Hub but since then, no one can tell me where my parcel is. I don't know if it possible to open a case of Theft at the south African police as i have just been said that investigations are in progress however i dont know if anything is really happening. Please advise on how i can proceed. How is the Post office dealing with these occurrences?<br> International Tracking was RS***NL and local tracking was RI***ZA .