So i did manage to get an account made using this method, but I also received error 8002A280 when trying to connect to psn. I've heard a suggestion that it would work on rebug 3.55.1 but its only speculation cause i haven't tried.
Try setting your time by the internet in rebug mode on any NP environment, you'll know by whether or not it gives an error.
Must be in QA flag to access NPe: RC
Must also be spoofed to the newest fw.