<p>Hey I sent in my second part of the application on October 22nd (regular decision), and received an email saying that I would get an acknowledgment letter with an ID to check my application and that I should allow 30 days for this letter. I still haven't gotten this letter, should I be concerned or call Columbia?</p>
<p>Just call and they will give you your id number</p>
<p>Alright, thanks man.</p>