“预订三亚民宿8499元被毁约”，官方通报后续：拟罚款35万，吊销营业执照，列入严重失信名录

Group 1 - The core issue involves a case of a homestay in Sanya that charged 8499 yuan but later increased the price to 30,000-40,000 yuan, leading to a breach of contract and consumer rights violations [1] - The Hainan Provincial Market Supervision Administration plans to impose a heavy penalty of 350,000 yuan, revoke the business license, and include the operator in a serious dishonesty list [1] - During the Spring Festival, Hainan implemented a comprehensive regulatory approach combining online monitoring and offline inspections, focusing on price fraud and consumer exploitation [1] Group 2 - The Hainan Provincial Tourism and Culture Department introduced a credit supervision model during the Spring Festival, which includes a "Hainan Safe Travel" compensation platform [2] - The compensation platform received 778 complaints during the holiday and provided advance compensation totaling 1.7196 million yuan, ensuring the protection of tourist rights [2]