The manager received a complaint from a customer about poor service.
She deals with customer complaints calmly.
They are bored with listening to complaints.
They talked to the manager about the complaint.
His complaint is related to the payment process.
He reported the complaint to the department head.
I would like to file a complaint against a waiter.
I would like to file a complaint against a worker.
I would like to file a complaint against an employee.
I would like to file a complaint against the manager.
They are capable of handling customer complaints politely.