I get a lot of invitation from call girls (most of them are chinese) in LINE. They use LINE's nearby feature to send request. and all of them apparently wants webmoney for sexual service. They won't take real cash. And their rule is also weird. They want me to send photo of webmoney purchase before they meet. I haven't bought any webmoney because I'm afraid if I buy webmoney and give them the details of it, they will never show up. Do you think this is legit or another scam ?