Worse Service Ever!

I placed an order on 06 December '18, to be delivered no later than 13 December '18 (3-5 working days). After receiving a notification that order is out for delivery on the 13th of December '18 and not receiving any deliveries, a second notification for delivery went out on the 14th of December '18. After not receiving a delivery for the second time, I phoned the call center numerous times where the agent promised that the parcel will be delivered the next day as the driver ran late. After not receiving the parcel by the 24th of December '18 I requested a refund, no refund has been received to date (14 January '19). This is the worst service I have ever experienced!