I helped a friend who I knew for a short time invest. So I was invited to a group chat to know more about investment and I operated for a week. The teacher Ma helped us profit, so some old members invited new members . I was effected, too. But I was wrong. Some of these old members are part of their fraud company. They cheated people to earn commissions. And I was removed from that group chat later. I was cheated without recognizing this situation. Now the teacher Ma deleted my contact and disappeared. Do not trust some so-called friends. They will pay for what they have done.