After mailing a request for removal of a fraud alert, I received a letter that I would need to send in 2 pieces of ID to verify identity and current address. I called the number provided for questions, 877-528-6479. Seems like this is only accessible if you have a confirmation number.
I asked if I can fax in my IDs and was told that I can fax the IDs, with confirmation number and request to 888-826-0573. This is for both removal of alert and update of information.
It may be possible to do the initial request via this fax number. Information I sent in the original letter was name, social security, phone and address.