Poor customer service

I ordered comforters for 3 bedrooms,they delivered 2 so appealing to my eyes duvet covers in January 2022.I reported the matter to them,they told me to fill in the form and they gave me Ref no ***1,they promised to send the courier company to collect the parcel,I even gave them the no to call when they come to collect the parcel,even today the parcel is still lying on my chair