犀牛智投 Broker Review

I've been trading on this platform for a while now, always losing money and never withdrawing any. This year I finally made a profit and wanted to withdraw some, but the platform won't let me. They keep saying "KYC" (Know Your Customer), and when I contact customer service, they just tell me to send emails, but no one answers. If I say too much, customer service just stops replying and ignores me no matter what I say. Is it possible I'll never get my dollars back?