Poor service and delivery

I purchased blankets on 13 November 2020 and I was advised that I would received the blankets by 24 November 2020. I was initially disappointed by the turnaround time however, I understood. Today is the 25th of November 2020 and I have still not received an update as to when I will be receiving my parcel. I had to call in and even the gentleman who assisted me advised that he cannot say for sure when the package will arrive, all he can tell from the system is that it has left the factory. Why should I, as a customer, follow up with the store after the estimated date of delivery has passed? I should be getting delay messages without wasting my time and money. This is unacceptable.