Despite knowing the user has 3 accounts here and those accounts already tagged, (even they are banned now) you tried to make the deal? I force myself to say that it's your fault where you did not try to think more than once before making a deal with such a scammer. Take it as a lesson and be aware of your money. If very you don't care about your money then nobody will care it.
my goal is just to warn people.
my fault. no problem. but I just don't want others to be harmed.