You are working at a Korean cafe, restaurant, hotel desk, or convenience store. A customer comes back to the counter and says there is a problem with the order. The drink may be wrong, the food may be cold, the receipt may not match, or the customer may ask for an exchange or refund. In this moment, polite Korean is not just language study. It is part of service work.

This lesson teaches Korean customer complaint phrases for service workers. The focus is practical: listen to the customer, apologize briefly, check the problem, explain the next step, and call a manager when needed. The words come from the BS3001 word database and can be reused later for Learn Korean, quizzes, audio, and app content.