**Here are 10 examples of using the word «complaint»:**
1. She filed a complaint with the consumer protection agency after discovering that her credit card company had been charging her for unauthorized transactions.
2. The patient complained to the doctor about persistent headaches and fatigue, but the doctor could not immediately identify the cause.
3. The customer service representative listened to the customer's complaint about the slow delivery of the order and promised to investigate the issue.
4. The company received numerous complaints from customers about poor customer service and delayed deliveries.
5. The teacher was annoyed by the student's constant complaints about the difficulty of the subject, but tried to find ways to make the lessons more interesting.
6. The airline was forced to compensate passengers for their inconvenience after a series of flight delays and complaints from passengers.
7. The police received a complaint about a suspicious person loitering near a school, and took measures to investigate the situation.
8. The restaurant owner was disappointed by the negative review and complaints from customers on the review site.
9. The school administration responded to the parents' complaints about the lack of security measures by implementing additional security measures.
10. The company's reputation suffered after a scandal involving complaints from customers about product quality and service.