A customer is angry because a package they sent was delivered late. They begin raising their voice at you. What's the BEST response?

Delayed/lost/damaged mail is a common source of customer frustration. The customer is rarely upset at YOU personally — they're frustrated about a service failure that affects them. The exam screens hard for: (1) STAY CALM — your professionalism sets the tone; matching anger escalates; (2) ACKNOWLEDGE feelings — 'I understand this is frustrating' validates without admitting fault; (3) LISTEN to specifics — what they sent, when, where, current status; (4) USE PROPER PROCESS — USPS has formal claims and inquiry processes (delayed mail forms, missing mail searches, claims for insured items); (5) INVOLVE SUPERVISOR when needed — supervisors can authorize refunds, expedite searches, handle complaints; (6) DON'T promise outcomes you can't deliver — 'I'll look into it and get you started on the inquiry' is appropriate; 'I'll find it' may not be possible. Matching tone escalates and can result in safety/discipline issues. Defensiveness makes the customer angrier. Walking away abandons the customer and fails the service mission. The right pattern: calm + acknowledge + listen + use proper process + escalate appropriately.