Didnt do delivery as promised

I ordered a game on CNA online and delievery was supposed to be delivered today(29/09/2017). I called the online call center on ***at 2pm and they said that my delievery will definately be deliver today. When i checked with Dawn Wing couriers at 4pm, they said my parcel didnt exist and couldnt track my order with the tracking number provided by CNA. So when i called the call center again, they said they are experiencing problems and my parcel will only be delievered on Monday. If i hadnt called the call center, I wouldnt have known my order wasnt going to be delivered.