For the first contact, I was guided to open an account with 250 US dollars on the phone. After that, I felt unsafe and didn't want to invest anymore. I wanted to withdraw the $250 out but couldn't.

Then, someone called and said that it is ok to withdraw money, but you need to verify the information first. I didn’t give it all, but he actually read out the Visa card number and said that I need to take a photo to verify that I can give it to me, so I took a photo and uploaded it, and then they disappeared. Originally, the amount in my account is still there, and now it has been transferred out of 250 US dollars, and I don't know how to get it back. And I am worried that the money in the account will be withdrawn in the future.