John received his credit card statement the mail. He noticed a charge a fancy restaurant he had never . It must be a mistake. John to report the wrong charge. He the customer service number on the of his card. A friendly voice Sarah answered. John explained the situation, calm and polite. Sarah listened carefully assured John they would investigate. She him for some details and promised get back to him soon. A days later, John received a call Sarah. She apologized for the error explained that the restaurant charge was a mistake. John's account would be back the full amount.