PIP assessment home visit cancelled

I requested a home visit they looked at my case notes again & then gave me a home visit...my point is why are they now instisting I attend an assessment centre....probably with my Bi-Polar & complex needs....however surly that they would have known this when reviewing my case notes for a home visit....is there any legislation I can quote them as to them maybe being discriminative regarding my complex needs

Ok I thought it would halt the process of my pip claim whilst the complaint took president ....I am not trying to get out of the assessment it is the way that the IAS has handled this situation and how it has left me....and yes I am sure their are thousands of other claimants in the same situation I just feel that their is an injustice here...or maybe I am just naive and have to conform to the IAS and take their actions as normal....it has been ten years since my last assessment ....so I believe that an assessment is well & truly due... However it is the way that the IAS handle these claimants that we just have to put up with their non compassionate approach however they advocate to give their claimants the respect they rightly deserve. Maybe I should wake up & smell the coffee.....on a postive note.....this web site is great & a great source of information THank you

Thanks for your reply when they do paper assessments why only 3% where on your site is their any litriture on paper assessments how they look at them ? what information do they ask for. ? Are paper assessments only for terminally ill claimants ?