"I seriously have the job of trying to contact people who place orders on a very, VERY popular website, and then try to cancel their card before it actually gets charged. See, we don't charge until right before the item ships, which is sometimes a day or two. Some people have figured that out, and OCCASIONALLY one will ship out before we've actually charged the card. There are literally thousands of people out there who go on our site, make a purchase, and try to cancel or somehow block the charge going through in the hopes that the product will ship out. I call 25-40 people per day trying to get them to update their payment method. Sometimes you can tell that it's honestly innocent, like their card expired or got lost. But most of them play stupid and hang up on you."