Provides multilingual Korean and English customer support for international payment inquiries through phone, chat, email, and other channels. Troubleshoots complex payment issues, guides customers through payment processes, conducts proactive outreach and follow-up, documents interactions, escalates issues, gathers payer feedback, and collaborates with internal teams. The role requires empathy, cultural awareness, adaptability, and proficiency with Zendesk, Google Workspace, Looker, and banking partner systems.