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候补订单在兑现前可随时取消且全额退款，不产生额外费用；但一旦兑现成功则按正常车票退改签规则处理

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12306候补购票服务product_sku 高铁票category

Related Claims

Unverified平台售卖的代金券通常受平台'过期未消费自动退款'保障，而商家直售或第三方券多为一经售出不退不换，购买前需确认退款条款79% similar Unverified套餐到期后余量作废且自动续费机制需手动关闭，购买前务必确认订阅设置避免意外扣费77% similar Unverified下单前务必确认取消/改期政策，部分券在服务人员已接单后取消会扣费或不退款，不同时段政策可能不同76% similar Unverified支持'过期自动退款/未核销随时退'的团购券可大幅降低囤券风险，购买时应优先在券详情中确认退款条款，无理由退的券可放心多囤76% similar Unverified取消或改期订单通常需要提前一定时间，否则会扣除手续费甚至扣除一次服务次数75% similar

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curl https://kongchang.com/api/v1/knowledge/claims/634832

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get_claim(id=634832)