Your question is Recovering From a Customer Failure. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you had a negative experience with a customer. What specifically went wrong, how did you handle it in the moment and afterward, and what did you learn that changed how you work today?