Most disputes have nothing to do with the quality of your product, they're because it's a card number has been stolen and being used illegally and the merchant

Most disputes have nothing to do with the quality of your product, they're because it's a card number has been stolen and being used illegally and the merchant has no way of knowing this. You're not just out the $15, if you've delivered given the customer merchandise, you'll have to absorb that loss. Most times you won't know a charge has been disputed for around 30 days, so your merchandise is very likely to be gone. The $15 is nothing for many businesses...