Guys i wanted to know one thing, I was banned until 29/01/2018, the ban is over and I can't play online, it continues saying banned user, someone knows what I should do to take out the ban?

Galera queria saber uma coisa, fui banido ate dia 29/01/2018, o ban acabou e nao posso jogar online, continua dizendo usuario banido, alguem sabe oque devo fazer pra desbanir