Credit card payments are the name of the game and there are four key players: the cardholder, the issuer, the merchant and the acquirers. The first and third are simple enough to understand without much of an explanation. A cardholder is the individual who owns the credit card making the payment. The merchant is the business receiving the payment in return for a good or service. However, issuers and acquirers require a more detailed look to see where chargebacks and a chargeback mitigation solution fits in the bigger picture.