一起提交了三个人Evus登记，签证都是一起新签的，EVUS也是第一次注册，紧接着就收到这个信，登入查看还是显示已登记，要8月底才去美国，这个是什么情况，求指点！ATTENTION! The enrollment submitted on 2017-07-06 03:18:00.387 via EVUS will expire within the next 30 days. It is not possible to extend or renew a current EVUS enrollment. You will need to enroll for a new EVUS. Please reenroll at https://www.evus.gov if travel to the United States is intended in the near future. If there are 30 or more days left on the old enrollment you will receive a warning message during the enrollment and be asked if you wish to proceed.