"Whoops, our bad" is actually a valid excuse in virtually every industry, as long as your mistake doesn't cause damage that needs to be repaired. Such damage is

"Whoops, our bad" is actually a valid excuse in virtually every industry, as long as your mistake doesn't cause damage that needs to be repaired. Such damage is the only reason anyone has to pay in the situations you described. This situation is much more comparable to, say, ordering something from a store that turns out to be out of stock. The store has to refund you for the sale, of course, but that's all they are on the hook for. They aren't punished beyond that, they don't even have to go out and find the item for you.