h1b transfer PP 但是没有 email approval notice？

8/14 file with PP
8/28 approve

在USCIS网站上查到approval了，一开始显示的是”Case was approved and my decision was emailed”，过一会又变成了只是“Case was approved” 询问律师，也说到今天也没有收到email approval notice。

有人遇过PP的case也会不email approval notice吗？