The accounting lady said they want to report to IRS the check that they are going to write to BCIS, thus they need a W9 so they can get BCIS into the accounting system.
I am not too familiar with the accounting and tax practices, I am not sure what should I tell her. I searched the [whole] Internet, nobody seems to have experienced this problem before.
I did call BCIS at 1-800-357-2099, nobody seems to know what a W-9 is!