Got banned for tking

I was defending against a raider, and since he was using just the normal lightsaber, and not the double handed one, it brought other players down to low hp. Now as I am flying in the air and using the golden minigun, I accidentally hit other players, and got banned for tking, I was just trying to kill the droid murdering everyone. I lost 3 power and I’ve played for almost 5 hours today, please help.