It sounds as though the central station is planning to enter the reporting data for the gentleman. That would obviate the need for him to know the CS format or phone number.
From what the gentleman posted originally, the problem might just be a wrong call-back number. That would be simple to fix. If this is the case he's only a few steps away from completion. He certainly doesn't need an alarm company to do that for him. Furthermore, I doubt he'll find a local alarm company that will program the system for monitoring without locking him out of programming. If they do that (and there's no way he will know if they intend doing so until it's too late) then he will be unable to service his own system -- one of the primary reasons most DIYers want to get away from alarm companies.