recall to INS office where it was filed

[Dhel]

Hi, have a friend (schedule A - nurse) who were scheduled to have an interview this morning at the US embassy in Manila. Unexpectedly one of the staff told her that her case being "recalled to INS where it was filed". She was not given a chance to show her documents eg. visascreen, offer of employment etc, was not also interviewed by the consul, they just took the letter of appointment and advised her that they will just inform her of another appoinment date"

Does anyone heard of any similar incident or who knows the reason behind this? This is scary!

Thanks in advance!