List the two approaches that can be used for customer complaints?

1. Reactive approach: This approach involves addressing customer complaints as they arise, typically through customer service representatives or complaint resolution processes. The goal is to resolve the issue quickly and effectively to ensure customer satisfaction.

2. Proactive approach: This approach involves anticipating and preventing customer complaints before they occur. This can be done through improving products or services, providing clear communication and instructions, and implementing feedback mechanisms to address potential issues before they escalate into complaints.