And the delivery of the package does not have to be for a specific item rather a series or a group of items. And if one package is stoped the next package delivered would still deliver the top 10 or so items from the list.
I think that will have to be way it works. Although I would like to have it as, "too bad, so sad" that your item to be delivered was lost in transit; I think that would be a cause for a good number of people to not want to play such a game or not bother with deliveries. Am still leaning in that direction for illegal items, that is just the inherent risk with trying to get illegal goods. But for legal goods, I think the above quote would be it.