status从case received变成case received and a receipt notice was emailed

lz的case11月25日file的pp，11.26 case was received。然后展开了日刷百遍的虐心过程。突然在今天一早收到邮件短信说状态变成了case was recieved and a receipt notice was emailed。。。这什么意思。日期也从11.26突然变成12.12。不能2周的pp从今天才开始算吧……………备注：汇报里的公司和日期不准

同时收到了两封系统邮件，initial review和acceptance。有人和lz类似情况吗？