If Twitter performs a large-scale API update that renders commonly used interfaces unavailable, and the service provider fails to restore service within 48 hours, users can choose to request a refund. Refund rules are based on a minimum refund amount for the remaining time or usage (for example, for the 99U plan, if only one request is made and one day remains, only one day's fee will be refunded; if 1.1 million requests are made and 29 days remain, only the fee for 100,000 requests will be refunded).
在遇到推特进行大规模接口更新 导致用户常用接口不可用的情况下，服务商如未在48小时内修复恢复服务，用户可选择申请退款：退款规则按着剩余时间 或者 使用量 退款最小原则退款（比如：99U计划为例 ，仅调用了1次请求，剩余时间1天，则只能退款1天的费用。 如 使用了110万请求，剩余29天，则只能退款10万请求量的费用）