I was also deceived by this Bitcoin sister. Just like the original poster said, after paying 18,000 RMB for a 3-month membership, I followed her trades for half a month and discovered various problems. I messaged her to ask what was going on, and then without consultation, she unilaterally removed me from the membership group, claiming that 'my mindset was unbalanced,' and then she blocked me. I hope friends who have had similar experiences will contact me to collect evidence. My Telegram is thedustseltdown.