Your question is Negative Customer Experience. 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).
What is one negative experience you have had with a customer, and how did you deal with it?
Please choose one specific customer interaction rather than describing a general approach. Explain the circumstances, your responsibility, the actions you took to understand and address the concern, and the outcome. Focus on how you handled the relationship, communicated under pressure, involved internal AWS resources when appropriate, and applied what you learned afterward.