Order untraceable on top of bad customer service

I ordered 2 arm chairs at the end of October. The sales person advised that the order would take 4 weeks and at the most, 6 weeks. To date I have received nothing. On top of that the service received from the sales person Boitumelo was unsatisfactory from communication to prioritization to customer respect. I have been following up several times and nobody could assist, I did request call backs which I never received on more than 2 occasions until I went to the store in person. I went there twice in addition to the calls, there was a lady who assisted and ensured that Boitumelo eventually returns my call - 3 days later. She advised that the supplier would release the order on 17 Dec and it would be at the warehouse on 18 Dec. 5days later with no update I called to follow up (this morning) and had to end up going there myself to hopefully get answers. At 5:30pm she called to say the chairs were not on the GRN and they were also not with the supplier. There is not even a trail of where this order is and I find this unacceptable. Were these chairs even ordered to begin with? This is really disappointing. The service is pathetic, staff not even willing to assist, how ***********!