Binance is legally registered in our country, Igor, and thus you can sue them regularly.

CNPJ: 37.512.394/0001-77
Name: B Fintech Servicos de Tecnologia LTDA

There's also "Binance (Services) Holdings Limited", CNPJ 45.165.233/0001-82

I would just sue both companies through the Small Claims Court. You don't even need a lawyer and it's free.