Online purchase vs courier a nightmare

I order 2 TV’s through HiFi Corp online during Black friday week. Yesterday i received an sms stating that my parcel will be delivered between 8am and 5pm. I waited the entire day to no avail. I checked the status after 5pm, the tracking online said that the parcel was delivered and signed on Glass. When i phone Hifi Corp and pres 3 for their tracking, the phone just kept ringing. After few attempts, i spoke to Lucian, who informed me that the parcel was delivered to me and i signed for it. I told him that no parcel was delivered from Hifi corp to my business address. I asked him how did they identify the person they gave the parcel to. Was the ID book requested or produced. He was unable to answer. He collected my details and advised that he would contact me as soon he get feedback before close of business. He contacted me within an hour stating that the courier company was closed however he dropped them an email so he will contact them the next day to follow up and contact me back with feedback. I waited the entire day to no avail. I tried to contact him to no avail. The phone just rings then drop. Hifi corp, I want my parcel be delivered to me asap or i will be opening a case with the SAPS for theft this evening.