I got the wrong reward in the arena. Instead of the Jonin reward, I got the ninja school student reward

Server ID and Timezone: S127 UK

In-Game Character Name: Demon

UID (Recharge, Top right corner): 10210745229290285

Screenshot of the Arena Interface: http://i.imgur.com/M3P5pBa.png

Screenshot of your in-game Email: http://i.imgur.com/fWHjI2Y.png