Poor delivery service on online shopping.

I placed an order online on 25 November (PnP Online Shopping order ***) with expected delivery date Fri, 27 November. Delivery took place on Sun 29 November and the goods were returned as all the frozen items had been spoilt (apparently the truck broke down ...) They returned Mon, 30 November with the order short 1 item - Tussers cheese. Driver promised he would delivered on Tue, 1 December. It's now 2 weeks later, 3 international phone calls (I work abroad and the order was for my mother for the weekend so she would have food)