nothing was updated but my app was mailed again last week friday

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No, I didn't know that... but thank you. haha.

Check to make sure they did not update something on your GPA or that they did not get one more LOR.
 
I added schools in 3 different batches. The 1st batch of schools have 3 different mailing dates; the 2nd batch of schools have 2 different mailing dates; and the last batch of schools only have 1 mailing date. From my case, it seems like that is just the way AADSAS mails stuff if you add schools after e-submitting.
 
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