Homemark Does Not Keep Promises - Paid for item still waiting for delivery

Bought online, Milex Antarctic Air Cooler- Desktop Aircon, on 28 Nov 18 @ 10h22

Made EFT payment 28 nov 18 @ 10h23, emailed POP, STILL NO DELIVERY OR COMMUNICATION IN THIS REGARDS

Why must I as a customer have to follow up - What Is Mine???????