Ordered an item but never recieved it over 10 days

Amazon UK and their delivery partners service is appalling. I ordered an item on the 19th February and I was expecting the item on the 24th latest. Only to find out that there was notice left on post box on the same day I was home almost all day. No attempt to email me or call me to arrange for delivery since the delivery man decided on his own that it was not safe to leave a suitcase in on door step. This is weird as I have ordered more valuable items and always find them in door step if the delivery man rang the bell and no one answered. They no decided to return it to the seller again without any communication. When I asked my refund they say I am not eligible ..This is worse customer service treatment ever!!