• managing invoices from telecom suppliers in the APAC region, making sure they are received on time, and uploading them into the company's billing system• investigating and resolving disputes related to billing and usage charges by communicating and negotiating with suppliers• checking and confirming the accuracy and completeness of billing and usage data• communicating with suppliers and stakeholders to gather information and resolve issues• preparing reports on usage data discrepancies with further investigations• identifying and implementing process improvements to increase efficiency and accuracy of billing and usage data• ensuring compliance with regulatory requirements related to billing and usage• maintaining positive relationships with suppliers to ensure timely invoice receipt and dispute resolutionAchievements: rapidly reducing backlog of usage-data discrepancies to normal levels (approx 2000 to 50); keeping up to monthly KPIs in invoice processing and dispute closure.

• responding to customer inquiries and providing accurate information on tax-free shopping and refund processes and procedures in both English and Russian• resolving customer complaints and issues related to tax-free shopping and refund• acting as a liaison between customers and other departments to ensure customer needs are met• providing guidance and training to junior customer service agents on tax-free shopping and refund process• identifying and reporting customer service trends and issues related to tax-free shopping and refund and providing suggestions for improvements