面对消费陷阱，如何有效维权？

Group 1 - The core issue is the vulnerability of consumers in prepaid services, highlighting the importance of effective and correct methods for rights protection when businesses default [1] Group 2 - The first step in rights protection is to gather solid evidence, including transaction receipts, payment records, and contracts [2][3] - Evidence of product/service issues should include photos, videos, and communication records with the business [4] - Advertising evidence should consist of screenshots and recordings of false claims made by the business [5] - Information about the business, such as the full company name and registered address, is crucial for filing complaints [6] Group 3 - When negotiations with the business fail, consumers can use the "Black Cat Complaint" platform, which is a widely used public complaint channel with quick responses from companies [7] - The process to file a complaint includes accessing the platform via WeChat or downloading the app [9][10] - Consumers must accurately fill in the complaint details, including the business name, a concise title, and a detailed description of the issue, along with uploading all gathered evidence [11][12] Group 4 - The platform offers advantages such as transparency in the complaint process, broad coverage with many companies, and convenient mobile operation [15][16][17]