Before breaking off with Graft, there were a few details that Raze needed to give to even set up the meeting. Raze had suggested even coming with Graft and meeting him in person, but Graft had to insist that it wasn't the right move.
Those from Alter were already quite secretive about their tasks and jobs, and in this case when they were in the Demonic Faction where they weren't supposed to be in the first place, they were even more secretive.
Graft would have to use his own method to get in contact with his leader, and then he would turn on his communicator and try to find Raze when they were ready.
In terms of the information that Graft had asked for, a lot of it was something that Raze couldn't even give. He had asked for a squad name, which Raze didn't know.
So in the end, the only thing he could say was his squad leader's name which was Himmy, and he didn't even have a second name.