DLA to PIP

Hi there ,
I am new to the forum. I had my f2f medical on 2nd June carried out by atos in my home. I have been in receipt of DLA for a severe pelvic condition since 2001 and been in receipt of higher rate mobility with an indefinite award. Today I received a letter from Motability informing me I had not been awarded the enhanced rate of mobility and would therefore have to return my car ! I have not received my letter from the DWP yet ! I called the DWP and expressed my outright disgust that I should find out this way. They were their usual unhelpful selves and told me the decision letter had been sent out on 15th June,but they would send me another one ! I was told I had received 10 points for the mobility descriptors and 8 points for the daily living. I am just wondering whether I should pursue a mandatory reconsideration. I did tell the medical assessor that any walking causes me pain and discomfort , even very short distances. My car is my lifeline and I am devastated to lose it. I am realistic enough to know that the new descriptors were always going to be hard to score the necessary points for. After 20 years of fighting I don't know if I have any more fight left in me. Sorry for the long post but would welcome any advice.

Thank you Gordon for your prompt reply. Yes I figured that would be the case. I am in a very ambiguous area. I was retired on ill-health due to my mobility problems and all walking gives me pain and takes me longer than the norm. I can't self propel in a wheel chair due to upper thoracic problems. I submitted medical evidence from my GP, Consultant and Physio. I told the medical assessor all of this who never witnessed me walking. It's such a cruel system and my heart goes out to the many thousands of ill and disabled people being affected by this cruel change to the descriptors. I will have to make a measured decision when I receive the letter from the DWP.