Mr Delivery does not accept accountability!!

Lastnight 31/03/2015 my fiance and I purchased Nando's from our Cresta and Randburg branch Mr D. The order was complete however on arrival it was found that one item was missing..My fiance then had to go through the mission of contacting the call center and the missing chicken livers finally arrived over 30 minutes later.The dinner was a complete disaster thanks to this small little delivery issue,the livers were meant to be the starter and the item my fiance was most looking forward to. Im a regular customer at Mr D but this was really unacceptable. Should the drivers not check the purchase to make sure it is all there before delivering? Very unhappy with this level of service. My fiance asked the delivery man if the checked that the order was correct, to which the delivery man completely passed the buck and said he asked Nando's to check. Is it not their responsibility to check as well - seeing as they deliver the goods?