Transfer application materials mix-up

<p>I applied as a transfer student to a private university in the northeast about a month ago. They use rolling admissions to accept their students and take about 3-4 weeks to review each application so I applied well before their deadline. I called them around the time I sent in my application because they had not updated the fact that they received my high school transcript well before I sent in my application. All my materials were in and when I talked to someone in the admissions department, they said they would update my materials and everything would be taken care of. I checked back about 2-3 weeks later just to see my application and the materials were still not updated. The problem is that they did not review my application because they thought I hadn't sent in all of the application materials–their system told them my application was incomplete. I called them and they apologized and said they would update my materials and review my application "as soon as possible". I asked what that meant and if it would be another 3-4 weeks and they confirmed that it would take about another 3-4 weeks. They did update it, but I am very worried that because they failed in updating my application that I am at a disadvantage, due to their rolling admissions, compared to if they had updated my application on time (my application would have been reviewed by now).</p>

<p>My question is if I should write a letter to the school so they can see with my application that it was supposed to be reviewed about a month earlier? I don't want to have to make an appeal to the school if I get rejected, but I am also worried that the letter might make them think somewhat negatively of me.
Thanks in advance for any advice.</p>