I'm not sure it is the best idea to comment what you have on here, when no one has any idea if this is true. You could make some people very anxious by saying they will be unsuccessful if they don't hear anything by 5pm today. I haven't heard anything from PM yet, but I also haven't seen anyone on here get any news who applied to the Manchester office like me. Those applying to London and Scotland seem to have received rejections and invites to the next stage, so it seems unlikely that other offices will automatically be unsuccessful if they haven't heard back by 5pm when not many applying to the regional offices seem to have heard anything yet.
Graduate Recruitment are probably just beginning to go through the applications for the regional offices so try not to worry if you haven't heard anything yet, no news is good news and it is not a rejection until you actually receive the rejection email! Stay positive everyone!