Well UIF clans have rougly more than 500 players since you can only accept 50 in a battle expecting there won't be any UIF member in defender side would be a bit silly.
You ask for ban by showing K/D , that shows that player didn't play well , nothing more.
I played 10/21 on my own battle in Derchios Castle did i intentionally help my enemies ?
Find some evidence take screens or take a video of whom you accuse while griefing idk teamhitting defenders , opening gates and such otherwise stop your blind accusations please , you are just being rude.