网上购物遇到问题，除了找商家还能向哪里投诉？

Core Viewpoint - In the digital consumer era, online shopping has become an integral part of daily life, but disputes such as product quality issues, shipping delays, and poor after-sales service are common. Consumers often feel helpless when problems arise, but there are various formal and efficient complaint channels available to resolve issues and avoid potential pitfalls before making purchases [1][8]. Group 1: Official Complaint Channels - The most authoritative consumer rights protection channel is the national 12315 platform, managed by the State Administration for Market Regulation. It allows consumers to submit complaints with evidence, which are then directed to local market supervision departments for legal resolution [2][9]. - The China Consumers Association and local consumer associations also play a significant role in providing information, consulting services, and supporting consumers in legal actions, although their mediation results lack enforceability [2][9]. Group 2: Industry Supervisory and Specialized Platforms - Different consumer sectors have specific complaint channels that are more effective due to the specialized knowledge of the supervising agencies [3][12]. - For communication service issues, consumers can contact the Ministry of Industry and Information Technology's telecom user complaint center (12381). For logistics issues, complaints can be submitted to the State Post Bureau's complaint website or WeChat mini-program [6][11]. Group 3: Third-Party Public Welfare Complaint Platforms - Large internet platforms have established public welfare consumer service platforms that serve as important supplementary channels for consumer rights protection. These platforms leverage public opinion and facilitate communication between consumers and businesses [4][13]. - An example is the Black Cat Complaint platform, which allows users to submit complaints through various methods and provides real-time updates on complaint progress. It also offers a collective complaint feature and an AI legal assistant for legal advice [5][14]. Group 4: Choosing the Right Complaint Channel - It is recommended to adopt a "ladder-style" approach to rights protection, starting with direct communication with the merchant and preserving all evidence. If unresolved, consumers should choose the appropriate channel based on the nature of the issue [10][16]. - Consumers are encouraged to utilize complaint platforms before making purchases to check the merchant's complaint history, response rate, and service quality, which can help identify potential risks [7][15].