Worst service ever

I had such a bad experience with homechoice , I placed my order on Black Friday last month, but upto today , it’s almost 1 month the order has not been delivered. What happened to their delivery policy of between 7 to 14 working days , the worst part is that I have been calling their customer service and they keep telling me that the order is with the courier and there is nothing they can do on their side , to top things up today when I called trying to cancel the order , I was told that the order was reflecting as delivered on their system, and I have to complete a ***** form , how can the order be with the courier yesterday and next day the system miraculously changes because I want to cancel the order. This is the last time I m dealing with home choice .