请教老师们，给父母办B2延期大概一月后收到receipt，是EAC开头的，因为马上签证就要过期了，有点着急，上网 查my case status说Your case can not be found at this time in My Case Status. Please check your receipt number and try again.
这正常吗？我是不是得给移民局打电话啊？