Loss of appeal rate on second mandatory reconsider

In 2016 I successfully appealed my ESA assessment,whilst the appeal was in play I was on Appeal rate.I have recently been through a medical to move to Support rate where as usual in many cases the 'health professional' lied on the form and it bears no resemblance to the Tape that I had done at the same time(taped interview)
I appealed again and was turned down on her evidence.I am now awaiting 1st tier appeal date.I had to sign on to Jobseekers Allowance meantime.After having checked that the Tribunal had received my appeal I signed off from Jobseekers and applied for ESA at assessment rate.
I heard nothing for four weeks and only found out by enquiring myself that they say I was not entitled due to them saying I was only allowed Appeal rate once having failed two 'medicals'.I have been living off my PIP for which I was awarded 24 points due to my medical conditions and that medical took place between the two ESA events.
My point is this no-one has shown me in writing this decision and of the people I have contacted heard of only one whom this has happened to but they were eventually paid ESA..Does anyone know the relevant regulation and where I can find it or challenge it ?