Quoted from mkecasey:

Since this seems like a situation where there is money in limbo, one of a couple things can happen. 1) The customer who has been charged the full amount can receive the machine they paid for while the business who has been around for 79 years can deal with reclaiming the money or 2) The customer can be charged the full amount and not have the game.
Doesn't it seem obvious to make the customer happy in this situation if they did nothing wrong?