Bad communication and customer service

I placed an order last week Monday 26 November 2018 for delivery I received confirmation that my order is received and being processed. Estimated delivery in between Monday and Tuesday 03 & 04 December 2018. I called in to confirm this 2 days later which the lady explained the Black Friday story which I understood. On Monday my order was still being processed no feedback or update I called them no answer and then I sent an email thereafter no response. I checked again yesterday to see if these items are dispatched still nothing I called again about 4 times on Tuesday which is last day for expected delivery. Today still there is no update on my order, no response to my email, no answer to the phone and no apology or reason for further delays. I’m an such a loyal customer to this organization but the level of service I have received/ not received is very disappointing especially since they have never disappointed me before. I can’t even cancel my order as there is option to do so on the app and no one is answering or returning my call. Am I ever going to get some form of communication from you? Am I getting my order next year or 2 months time tomorrow when? My order number ********** 57