Hello Ive recently been awarded a ban for bad sport when I was playing online with my f...

Hello Ive recently been awarded a ban for bad sport when I was playing online with my friend when we came across someone that was level **** that seemed dodgy. So we carried on playing in this session doing car work and cargo when he came over and tried to kill us he killed us a few times so we started to fight back but when I killed him I was automatically given a * day bad sport ban even though I’ve never had it before so it came across strange to me my friend also killed the guy and was given a * day ban and our records were clean players I would just like to see if you could override the ban please because I’m being killed in the bad sport session that I shouldnt even be in but because of this incident with the level **** I am now banned if need Xbox is the console I play on and my gamer tag is : Xxbenno*xX thanks