PIP Mobility Standard or Enhanced at 20 meters

I received my reconsideration letter this morning and assessor has stated the following:
"At the assessment you confirmed you can walk for about 10 paces ... You confirmed your maximum walking distance is 10 to 15 meters."
Followed by:
" you said you use crutches to move around within your home. 20 meters is considered to be the distance that a claimant is required to be able to walk in order to achieve a basic level of independence in the home such as the ability to move between rooms."
Then the descriptor she awarded was
can stand and then move using an aid or appliance more than 20 meters but no more than 50 meters.

I thought this descriptor was for over 20 meters, not 20 meters exactly,

I am about to prepare an appeal and would apreciate some advice please

Since you have the report estimating 10-15 metres you are under 20 metres anyway?
The cut off is 20 metres. Over 20 metres is 20.0001 metres so it is a bit of a moot point.

So the assessor is incorrect in awarding 10 points, it should have been 12points.

I have asked for a call back from the descission maker, but as this was the reconsideration, I dont hold out much hope.

Looks like I will have to go to tribunal

Go to your mp send for the assessors letter, my mp has got in touch with them telling them if they dont reconsider it will go to tribunal and they will be embarrassed they have used medical record from a previous tribunal which is illegal because it is a fresh claim and more stuff they have done which is not so honest, i have been to a tribunal and they are for you not against you. I even forgot my papers but if your telling the truth you have nothing to worry about,