Core Insights - The 2025 Double Eleven shopping festival has set a record for the longest duration, lasting 37 days from October 9 to November 14, with platforms like Tmall, JD, Douyin, and Xiaohongshu reporting significant sales growth and user engagement [1][2] Group 1: Pricing Issues - Pre-sale prices have been reported to exceed current market prices, leading to consumer complaints about being misled. For example, a consumer found that a pre-sale item cost 308 yuan while the same item was available for 291 yuan in stock [4] - Consumers are facing challenges with price adjustments during the return process, where some merchants require customers to pay the price difference if they wish to exchange a product purchased at a discount [6][7] - Dynamic pricing strategies employed by e-commerce platforms have resulted in significant price fluctuations, with some consumers experiencing price increases shortly after adding items to their carts [12] Group 2: Consumer Rights and Protections - Consumers are advised to be aware of their rights regarding pre-sale deposits, as some merchants refuse to refund deposits under various circumstances, which has become a common complaint [22][23] - The importance of maintaining sufficient evidence for consumer rights protection is emphasized, as many consumers struggle to prove their claims due to a lack of documentation [26][27][30] Group 3: Promotional Tactics - The complexity of promotional rules has led consumers to engage in extensive calculations to maximize discounts, often resulting in confusion and unintended higher costs [14][18] - The phenomenon of "algorithmic price discrimination" has emerged, where different users are shown varying prices for the same product based on their browsing history and purchasing behavior [12][13] Group 4: After-Sales Service - Issues with after-sales service for promotional gifts have been highlighted, where consumers face difficulties in obtaining support for damaged gifts, as merchants often require the return of the main product [9][11] - The lack of proper after-sales service for promotional items is a growing concern, with consumers encouraged to assert their rights regarding the quality of gifts received [10][11] Group 5: Market Trends - The rise of private domain e-commerce has introduced new challenges, particularly for older consumers who may be more susceptible to misleading marketing tactics in live-stream shopping environments [19][21]