Missing order

I placed an order for 3 items on the 27th of November and paid for it, on the app it shows my order would arrive on the 7th of December which it did not.. I then logged a query on the app and got my delivery the following day, only to find that only 2 of my items were inside the package.. I checked the app and it's showed my 3rd item would be delivered the 9th of December and I logged a query again. I was emailed by Kaylan Pieterson who advised that my query was escalated.. As of today I still have not received any feedback regarding my order.. And then they have a nerve to send me a survey to rate their service as if my query was resolved.. This is the first time I've ever had any problems with take alot but this experience is leaving a very bitter taste in my mouth.. I will not order from them again and I would recommend them to any of my friends or family.. The service or lack of service I'm experiencing while they are sitting with my money is unacceptable!