ESA tribunal - who has the power?

I got knocked off ESA in 2013 and appealed and lost my Tribunal cab said I couldn't have had a worse judge or Doctor, you don't usually get them both together. I did go back on ESA after 6months, been to another ESA medical assessment last March but that time I asked for it to be  Audio recorded and thought they wouldn't be able Lie on that, like I said thought. I turned up at the  venue and was there for nearly 4 hours for them to come to me and say its cancelled and they will send me another date through the post. which they did, They knocked me off again but they lied again but on the examination part, so put an appeal in and should have gone today (9th January2018) only to have a phone call to say it is cancelled and they will send me another date through. I was a bag of nerves as it was and it as made me feel really ill to have it done again. I was worried about going into the court as it was because of the last one. The thing is I haven't got any evidence from hospitals or anything because the operations and consultants I was under was a long time ago. just don't no how to cope with all this going on, Any help would be appreciated Thanks