Delivery failed 3 consecutive days

I placed an order on 1 December a d was scheduled for delivery on 5 December before 17:00 at my workplace. The order arrived at 18:00 and nobody was there to receive it. It was rescheduled for 6 December before 12:00. Amazingly I got an SMS that it was rescheduled for 7 December before 12:00. When enquiring I was told that the courier could not find my address: the same address that other companies manage to deliver my stuff to, same address that my colleagues also received their take-a-lot orders at, and same address that they managed to find on Tuesday. I called 3 times on 7 December and still do not have my order. My order history on the website has miraculously disappeared so I cannot cancel the order and the call centre is not helpful or getting back to me. Useless!!