Pip Taken off me

I previously posted I had an interview by Capita .They completely lied about what I had told them which meant they took my PIP off me .I was on Maximum for both parts for 6 years prior to this.I had to return my Motability Car.I asked for a mandatory reconsideration and explained the things Capita put in there report was inaccurate.DWP looked at it and gave me lowest rate but nothing for mobility side.
So I asked for an appeal which Citizens Advice helped me with.Out of the blue I received a text saying DWP had changed their mind and I’m now back on maximum for both parts.
I no I got the money they owed me backdated but the fact they put me through all this stress for no reason is disgusting.Im so glad I took advice reading posts on here and didn’t give up.
I just wonder if the money the expert from Capita had to be returned,what a joke these people are.
Anyway I can now try and get on with my life the best I can until the next review at least