A dispute (also known as a chargeback) occurs when a cardholder questions your payment with their card issuer. The card issuer creates a formal dispute which immediately reverses the payment. The payment amount, along with a separate dispute fee levied by the card network, is deducted from your account balance.
There is a dispute resolution process through which you can respond and submit evidence to make your case that the payment was valid. If the dispute is found in your favor, the disputed amount and fee is returned back to you. If a dispute is upheld, the card issuer’s decision is final and the cardholder’s payment remains refunded.