Group 1: E-commerce Overview - E-commerce is a business model that utilizes the internet for transactions, encompassing B2B, B2C, and C2C models, characterized by technology-driven operations, comprehensive coverage of transaction scenarios, and data-driven management [1] Group 2: Common Issues in E-commerce Consumption - Issues include counterfeit products, misleading product descriptions, and quality defects, leading to consumer dissatisfaction [2] - Price-related problems such as inflated original prices and dynamic pricing algorithms that may result in price discrimination [3] - Challenges in after-sales service, including difficulties in returning products and prolonged repair times [4] - Logistics issues like lost or damaged packages and delayed deliveries affecting consumer experience [5] - Concerns regarding information security and privacy breaches, with unauthorized use of consumer data for marketing [6] Group 3: Effective Complaint Channels and Guidelines - The 12315 platform serves as an official channel for complaints related to product quality, false advertising, and price fraud, with a structured process for online and phone complaints [7][8] - The Black Cat Complaint platform acts as a third-party tool for addressing issues like delayed responses from merchants [9][10] - Industry-specific complaint channels are available for postal, telecommunications, and financial service issues [12] Group 4: Keys to Successful Complaints - Maintaining a complete evidence chain, including order screenshots and communication records, is crucial for effective complaints [13] - Clear and reasonable demands in complaints enhance the likelihood of resolution [13] - A structured approach to escalating complaints through various channels is recommended for efficient resolution [13]