What does Chargeback mean?

When a payment order enters the “Chargeback” state this means that, although the payment was apparently finalised, beacause of a change on the Bitcoin Blockchain, the payment is now invalid. Chargebacks are extremely rare events and usually happen when the PoS security level was set to “Low” in order to prioritise the transaction confirmation speed. If you want to lower the risk of chargebacks, it is highly suggested to increase the number of confirmations requested by the PoS. In such cases, the only viable solution is getting in touch with the payer and asking him/her to redo the payment, since the previous one did not get through.