Hi all I currently get PIP and ESA. My father passed away in July this year,so I took over the tenancy and did a quick benefits check online, that is when I came across SDP. I have never heard of SDP before.So I rang the DWP in July this year and applied for it.I got it backdated to May this year, after doing more research I now believe I may be entitled to having my SDP backdated further. I was originally on DLA middle rate care and low mobility as well as Income Support before I was transferred over to ESA and PIP.I was transferred over from DLA to PIP last March.I was also transferred over from Income support to ESA in May this year. I had been on Income Support and DLA since the early nineties,but never got SDP,I now know I was eligible since no one has ever claimed Carers Allowance for me,and although I had lived with my dad for over 20 years he was on high rate care DLA and Income Support to.So he was on a qualifying disability benefit so i would be classed as living alone. I have been in touch with the DWP and the lady on the phone told me I would not be able to get it backdated any further.Would that be right or is she wrong.