PIP FURTHER INFORMATION REQUESTED!

hi,today i have found out i have been sent a letter requesting further information!exactly what i do not know until it is in my hands,but what really bothers me is i am in the middle of a manditory reconsideration (nov 2014)and bang.. they now request this.surley if the MR is in process then the info is taken from that which is front of them already after being refused to begin with i re grouped and got more relevent /new information for them from my gp /and myself .otherwise they can keep on requesting new info...the goalposts seem to be moved yet again.
17 months and still waiting

hi gordon,my MR started on the 21st nov and i informed them a few days before this i had sent new information & doctors report for the MR.surley they are not asking again if i have anymore new info considering i was told the MR started on the above date!
regards