Handle and process cardholder disputes, including authorised and unauthorised transactions. Conduct detailed investigations using internal systems, CRM tools, and external partners. Validate data accuracy and ensure all documentation meets compliance and card network standards. Prepare and submit timely, accurate responses to card networks within SLA and regulatory timelines. Oversee card authorisation processes, including transaction approvals, declines, and reviews. Support internal teams and clients with dispute outcomes, escalations, and authorisation-related questions. Maintain up-to-date knowledge of Visa and Mastercard rules, dispute categories, and operational procedures. Assist with finance operations tasks, reporting, and reconciliation processes. Collaborate closely with operations, finance, support, and leadership teams to ensure smooth execution. Contribute to continuous improvement initiatives in dispute resolution, authorisation workflows, and reporting accuracy.