The CSL (China Shipping Lines) is one of the largest shipping companies in China and has been recognized for its excellent service to the industry. However, it is also known for some issues that have caused concern among users.

One of the major concerns with CSL is their return policy. According to the company, they provide a 12-month return period for all items purchased through their website or mobile app. However, this policy does not apply to certain items such as perishable goods and electronics.

In recent years, there has been a growing concern about the quality of products returned by CSL. Some customers have reported receiving faulty or damaged goods, while others have experienced delays in processing returns. This has led to complaints from customers who feel that they were misled by the company about the return process.

Another issue with CSL is their pricing. While the company offers competitive rates for bulk shipments, they often charge higher fees for larger orders. This can be frustrating for customers who need to purchase large quantities of cargo at discounted rates.

Furthermore, CSL has faced criticism for its handling of environmental issues. The company has been criticized for its role in causing air pollution in the port city of Tianjin, which is located near the border with the People's Republic of China. This has resulted in protests and strikes from workers who have demanded better conditions at the port.

Despite these issues, CSL remains a major player in the Chinese shipping market. The company continues to offer competitive prices and excellent customer service. However, there is still room for improvement in terms of their return policy, pricing, and handling of environmental issues.