这是录取的节奏吗？？？

请问大家，我收到封邮件，内容为：

Congratulations on being recommended for admission!!

We know that you may have many questions, so we have provide the attached document which includes information on:

• Admission Process
  
  
• I-20 process
  
  
• Housing
  
  
• AND MORE!!!!!!
  
  

In addition, we would like to recommend that you notify us of your official decision to accept/decline our offer of admission (through the official SIR link provided by the UCLA Gradate Division) within the next 30 days, but no later than April 15, 2015.

EE Office of Graduate Student Affairs

但是邮件没有提及我的个人信息。我登录UCLA网站也未发现录取信息，还是submitted。

怎么回事啊？