I was wrongfully com banned please help?

so basically i got com banned for someone reporting an old message which i admit i did say, but recently around the end of march, i was com banned for over a year because of hate speech, and in the details it said the n word, i have not used the xbox messaging system since early/mid january because i was afraid of getting banned again, i belive someone i know that has my account logged into their xbox had logged onto my account and said that word, i appealed my ban already but there is no reply, please help me.

:)