Listening Quiz: Giải Quyết Tranh Chấp Thanh Toán – Advanced Level

1. What problem does Paul report to Olivia?
2. What does Olivia say will happen to the billing mistake?
3. What does Olivia promise Paul about the extra charge?
4. Why does Olivia say, “Let me check your account now”?
5. What is the conversation mainly about?

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