You were not afk at all, you were running around for 2 maps (maybe more, I was only there for the 2) with no equipment and no weapon.  Once, you jumped down at me as I was climbing a ladder with just your fists up, when there were weapons lying around on the battlements that you could have picked up.  I issued two warnings in chat during the first map.  You kept on doing it on the second map --> ban.  
Don't lie about the situation and you'll be more likely to be unbanned btw, just a tip...