disabled account

Hallo, yesterday i was speaking with wy friends in Discord and for fun i type this

“УРАА МНЕ ЗАВТРА 12”

Thats Russian language (Im from Ukraine) thats translates like: HURRAY, I'M 12 TOMORROW

Im type thats only for fun but my friend report this masagge and my account was disabled but im 13 years old 

im pretty need this account. How i can got unban?