南京一市民起诉“开市客”胜诉，法院判决恢复会员资格并补足96天有效期

Core Viewpoint - The court ruled that Costco (Nanjing) Company breached the contract by unilaterally canceling the membership of Mr. Li, ordering the company to continue fulfilling the membership contract and extend the membership validity by 96 days [1][14][18]. Group 1: Membership Cancellation Case - Mr. Li purchased a Costco membership card for 199 yuan, valid from May 28, 2024, to May 27, 2025, but was informed of the cancellation on February 20, 2025, with a refund of the membership fee [2][4]. - Costco argued that Mr. Li's frequent claims and complaints, totaling 280,000 yuan, indicated he was not a regular consumer but rather a "professional litigant" [4][10]. - The court found that Mr. Li's actions did not violate legal provisions and ruled that Costco's cancellation of his membership constituted a breach of contract [15][18]. Group 2: Legal Arguments and Court Ruling - Costco claimed that Mr. Li's behavior violated the principles of good faith, justifying the cancellation of his membership [14][15]. - Mr. Li contended that the clause allowing Costco to decide on consumer access was a format clause that excluded consumer rights and lacked proper notification, rendering it ineffective [14][18]. - The court determined that Costco's unilateral cancellation of the membership was a breach of contract, ordering the company to restore the membership validity for an additional 96 days and bear the case acceptance fee of 80 yuan [18].