As an HR professional, the first step in addressing customer complaints is to investigate the causes of the increase in complaints. This involves collecting information on why customers are not satisfied and analyzing facts to identify the root cause of the issue. Once the cause is identified, training and development should be provided to concerned employees to make them competent enough to work effectively and efficiently. A customer relationship and complaint management team should also be appointed to address complaints promptly. Additionally, as a Human Resource Manager, providing proper training to employees and installing technology to manufacture high-quality products are essential steps in ensuring customer satisfaction.