Running a store, online or brick and mortar, means that you will meet different customers. Most of the interactions will be positive, but some interactions can be negative. One of the worst issues that can crop up as a store owner is finding out about a customer getting a chargeback on their credit card after taking home the merchandise. Some customers may claim that the credit card was stolen or that the item was no good and get a chargeback to their card, despite having the item.