All documents you send to Facebook will need to have the legal name of the business to confirm identity, from a phone number to an invoice. In case Facebook asks for anything else, there's a one-week deadline to send it. If you don't comply, the procedure will restart.
This is why you should take into account all the requirements that could be requested when verifying your company. This way it won't be a problem if Facebook asks for additional information. There are also some companies that help you with this kind of verifications like Callbell.