No delivery, no customer service, de*****ing people

I placed a R1200+ order with ZANDO on Monday 11/12/17, order number ********** 39. I wanted my order to be delivered quicker so I PAID for express shipping. I received an email the same day saying my parcel has been handed over to their courier partner, delivery was to be by Wednesday 13/12/17. When my order didn’t arrive I started to try and get ahold of ZANDO on Thursday... 3 phone calls to customer service went unanswered. I tried to get a hold of some one through twitter, Facebook and now finally through here.... although all I’m seeing is generic auto responses from ZANDO. No one seems to be taking an responsibility for anything and I can see a ton of people are in the same boat as me. ZANDO who is your courier partner?!? I paid extra money for a service I didn’t receive and I want my order today! Please let me know who has my parcel so I can contact them myself! Please!