I called Boston today to ask how long it typically takes from the date they receive my application to when the "request the supplemental application fee." The lady on the phone told me that they haven't even begun reviewing applications yet so its not unusual that I havent been asked for a secondary fee yet.
If anybody has been told different or already been told to send in a secondary fee, please post and let me know when AADSAS sent out your file and then when BU asked for a check.
Thanks