In the concluding episode of our PIX video series, we explore the intricacies of dispute management and fraud prevention within the ecosystem. Sabine and Carlos uncover the various mechanisms in place to address disputes and complaints, shedding light on the roles of PSPs and the Central Bank of Brazil in resolving conflicts. From the specialized dispute mechanism between PSPs to the end-user-centric refund process, we examine how PIX ensures fairness and efficiency in dispute resolution.