Regarding China SMS, China Mobile operator is currently upgrading its system to respond to the goal of comprehensively strengthening the industry's SMS security management in order to build a comprehensive risk prevention and control system. During this upgrade period, the messages of some customer may be delayed or even undeliverable. Affected users may need to submit more information for real-name registration purpose. Please note for our further notifications. For details, please refer to file "China Mobile Operator Notice".